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دو سال پیش ۱۹۷ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

زمان چیزی جز یک توهم نیست

دو سال پیش ۱۶۳ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

نزدیک به ۱۰ هزار نفر برای امور خیریه از میان یخ‌ها...

دو سال پیش ۲۱۵ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

پلنگ و مار پیتون

دو سال پیش ۱۶۰ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

چگونه یک The Inca از نخ‌ها برای برقراری ارتباط است...

دو سال پیش ۱۸۱ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

ببینید این کرم درختی چه واکنشی نسبت به صدا نشان می...

دو سال پیش ۱۴۸ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

فیل بازیگوش در برابر کرگدن غول‌پیکر

دو سال پیش ۲۴۹ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

درسته قورباغه ماهی در اصل قورباغه نیست اما قابلیت ...

دو سال پیش ۲۲۴ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

Snake Catcher Interrupts Python Mom With Her Eggs ...

دو سال پیش ۱۷۹ بازدید

Expecting to respond to a call about a single carpet python, a snake catcher discovered the python in question was actually a mother and her eggs ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Expecting to respond to a call about a single carpet python, a snake catcher discovered the python in question was actually a mother and her eggs. Measuring in at over six feet, the python had been seen repeatedly in a family's patio in Queensland, Australia. By sunning herself on the warm patio stones, she would then transfer the warmth to her clutch of 16 eggs, which she was incubating under a nearby bench. Both the mother and her young were removed in order to be released a safe distance from family patios. For the egg's safety/protection, they will be artificially incubated by Sunshine Coast Snake Catchers, taking up to two months to hatch. Read more about python eggs and their fragility. http://news.nationalgeographic.com/2017/01/snakes-eggs-australia-rescue/ Snake Catcher Interrupts Python Mom With Her Eggs | National Geographic https://youtu.be/I3Wg3z_iRtA National Geographic https://www.youtube.com/natgeo

Fennec Foxes: Why Are Their Ears So Big? | Nationa...

دو سال پیش ۲۰۰ بازدید

Fennec foxes are the smallest of the fox species ... but their ears can grow to be half the size of their bodies. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Learn more about fennec foxes. http://www.nationalgeographic.com/animals/mammals/f/fennec-fox/ Fennec Foxes: Why Are Their Ears So Big? | National Geographic https://youtu.be/7yu2gvILYyA National Geographic https://www.youtube.com/natgeo

Deadly Trick: Snake Uses Tongue to Lure Prey | Nat...

دو سال پیش ۱۷۱ بازدید

Puff adders are violent ambush predators, but new footage reveals that these snakes are the only ones known to use both their tails and their tongues to lure in prey. Xavier Glaudas, a herpetology postdoc and National Geographic Explorer, recorded the footage after tracking the snakes at the Dinokeng Game Reserve in South Africa. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Special Thanks: iKhaya LamaDube Game Lodge READ: Deadly Snake Wags Tongue to Lure Its Prey—A First http://news.nationalgeographic.com/2017/02/snakes-puff-adders-tongues-attacks/ Deadly Trick: Snake Uses Tongue to Lure Prey | National Geographic https://youtu.be/RT-VX031C6I National Geographic https://www.youtube.com/natgeo

These Spiders Build Decoy Dummies of Themselves | ...

دو سال پیش ۱۷۳ بازدید

Found for the first time near the Tambopata Research Center in Peru, these Cyclosa spiders build giant replicas of themselves out of insect corpses. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Watch next: Glowing Bug Attracts and Devours Prey https://www.youtube.com/watch?v=gXzOO1tbnmY These Spiders Build Decoy Dummies of Themselves | National Geographic https://youtu.be/Ce7hWBivPFM National Geographic https://www.youtube.com/natgeo

Watch: Entrancing Sea Creature Glides Through Wate...

دو سال پیش ۱۸۶ بازدید

Watch this mesmerizing feather star swim through the ocean. A type of crinoid, feather stars evolved to swim to evade predators. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Click here to read more about the feather star. http://news.nationalgeographic.com/2016/12/swimming-feather-star-video-crinoid-thailand/ Watch: Entrancing Sea Creature Glides Through Water | National Geographic https://youtu.be/_u6lJ7EEzak National Geographic https://www.youtube.com/natgeo

What Does a Frog’s Face Have in Common With Yours?...

دو سال پیش ۲۱۷ بازدید

Scientists have been studying amphibians to learn more about how human faces form. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta What Does a Frog’s Face Have in Common With Yours? | National Geographic https://youtu.be/_aXhTUmBoxg National Geographic https://www.youtube.com/natgeo

This Snake in a Toilet is a Bathroom Nightmare Com...

دو سال پیش ۲۱۷ بازدید

The chances of finding a snake in your toilet are very low, but unfortunately not zero. A rescue worker retrieved what an expert identifies as an oriental rat snake from a toilet in northeast Thailand. This species of snake is not a threat to humans, and the rescuers returned it to the wild the following day. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Read more in the related article from National Geographic News. http://news.nationalgeographic.com/2016/12/video-snake-toilet-thailand/ This Snake in a Toilet is a Bathroom Nightmare Come True | National Geographic https://youtu.be/lkGYGToUsNA National Geographic https://www.youtube.com/natgeo

Meet the Purple Hairy Squat Lobster | National Geo...

دو سال پیش ۲۱۸ بازدید

The hairy squat lobster is ... not actually a lobster? ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Watch next: A Sea Creature You Can See Right Through https://www.youtube.com/watch?v=K0VdwlAPU3A See a photo gallery of other odd sea creatures: http://news.nationalgeographic.com/news/2012/06/pictures/120613-weird-deep-sea-animals-fish-volcanoes-oceans-science-environment/ Meet the Purple Hairy Squat Lobster | National Geographic https://youtu.be/s3IZCGwoqA0 National Geographic https://www.youtube.com/natgeo

Endangered Shark Gives Rare

دو سال پیش ۱۸۴ بازدید

A captive female zebra shark separated from its mate for three years has given birth to juvenile sharks. Select photos courtesy Tourism and Events Queensland. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta A captive female zebra shark in Australia didn't let the lack of a male shark stop her from having pups. Three years after being separated from her mate, Leonie laid eggs that hatched juvenile sharks. The asexual reproduction is the first observed in a shark that had previously mated. While scientists pondered at first whether Leonie may have stored sperm from her mate for all those years, testing of the pups revealed that to be unlikely due to their lack of genetic diversity. Read more about Leonie and other species that have switched reproduction methods. http://news.nationalgeographic.com/2017/01/zebra-shark-virgin-birth-reproduction/ Note: Zebra sharks are often called leopard sharks in Australia, but they are a different species from the leopard sharks found off the west coast of North America. Select photos courtesy Tourism and Events Queensland Endangered Shark Gives Rare "Virgin Birth" | National Geographic https://youtu.be/KH0KItspmvs National Geographic https://www.youtube.com/natgeo

روانشناسی Game of Thrones

دو سال پیش ۲۴۱ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

What Makes the Wonderpus Octopus So Wonderful? | N...

دو سال پیش ۲۲۰ بازدید

The wonderpus octopus has some pretty wondrous arms. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Read "Why Do Octopuses Remind Us So Much Of Ourselves?" from National Geographic Magazine. http://www.nationalgeographic.com/magazine/2016/11/octopus-anatomy-cephalopod-disguise-evolution/ Watch next: "What is Octopus Ink Made of?" https://www.youtube.com/watch?v=J2drY7YARjs What Makes the Wonderpus Octopus So Wonderful? | National Geographic https://youtu.be/GRiFZUofC0Y National Geographic https://www.youtube.com/natgeo

TIL: King Cobras Are Cannibals | Today I Learned

دو سال پیش ۲۲۴ بازدید

The king cobra, with its size, speed, and neurotoxic venom, is a force to be reckoned with. Join National Geographic Explorer Sandesh Kadur as he explains the preferred meal of “the snake that is a nightmare to other snakes.” ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Watch All Today I Learned Clips here: http://bit.ly/2WatchTodayILearned ➡ Get More TIL (Today I Learned): http://bit.ly/MoreTIL About TIL (Today I Learned): Love crazy facts? We do too. Get ready to amaze your friends with some of the strangest facts you’ve ever heard. National Geographic explorers tell you new, obscure, and amazing things about the world (and beyond). Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. With the ability to grow up to 18 feet long, the venomous king cobra can raise a third of its body and look a human in the eye. While that might sound impressive, what really makes these snakes king is their diet: other snakes. The king cobra, with its size, speed, and neurotoxic venom, is a force to be reckoned with. Join National Geographic Explorer Sandesh Kadur as he explains the preferred meal of “the snake that is a nightmare to other snakes.” And if you happen to have a fear of snakes, take time to say thanks to the king cobra—it’ll eat those snakes for dinner. PRODUCER/EDITOR: Laurence Alexander SERIES PRODUCER: Christopher Mattle ASSOCIATE PRODUCER: Elaina Kimes TIL: King Cobras Are Cannibals | Today I Learned https://youtu.be/CWVXlygjLEI National Geographic https://www.youtube.com/natgeo

Venomous Snake Devours a Python Whole in This Rare...

دو سال پیش ۱۸۶ بازدید

A snake eating another snake is not a common sight. While eastern brown snakes such as the one seen in this video have been known to eat smaller snakes, it's rare to see one attempt to swallow something as big as this carpet python. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Filmed by Sally and Norm Hill from N&S Snake Catchers, the footage captures the eastern brown meticulously devouring a python on a family's back patio. The snake was given three hours to eat before being relocated away from people, where it slithered off unharmed after its filling meal Venomous Snake Devours a Python Whole in This Rare Video | National Geographic https://youtu.be/_ztVVV6NHgU National Geographic https://www.youtube.com/natgeo

Kangaroo vs. Kangaroo | National Geographic

دو سال پیش ۲۰۸ بازدید

Two male kangaroos face off with moves that resemble human hand-to-hand combat. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta During a visit to Warrumbungle National Park in New South Wales, Australia, a tourist filmed this fight between two male kangaroos, or boomers. The opponents engage in moves that resemble the grappling between wrestlers, and employ double-footed kicks with their powerful hind legs, and lots of pushing and shoving. Battles like this help determine social rank and mating privileges. Kangaroo vs. Kangaroo | National Geographic https://youtu.be/1tHZb_nBRQ8 National Geographic https://www.youtube.com/natgeo

Flying Above the World’s Tallest Waterfall | Natio...

دو سال پیش ۲۰۱ بازدید

The world's tallest waterfall is Angel Falls in Venezuela, measuring over 3,200 feet high. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Flying Above the World’s Tallest Waterfall | National Geographic https://youtu.be/CisaOUd-0uQ National Geographic https://www.youtube.com/natgeo

How Cookiecutter Sharks Eat Is Terrifying

دو سال پیش ۲۳۰ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

Watch Orangutans Build Umbrellas,

دو سال پیش ۲۱۵ بازدید

Orangutans are native to Borneo and Sumatra and must learn a variety of skills as they grow up. In this video, you'll see seven behaviors that researchers have observed in the wild: from pushing over dead trees to make noise as part of a dominance display, to building umbrellas to shelter from the rain. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Orangutans are native to Borneo and Sumatra and must learn a variety of skills as they grow up. In this video, you'll see seven behaviors that researchers have observed in the wild: from pushing over dead trees to make noise as part of a dominance display, to building umbrellas to shelter from the rain. Orangutans learn most of these behaviors before reaching adolescence, around age 12. Some of the behaviors are ubiquitous between Borneo and Sumatra. Others occur only in certain areas, suggesting there could be regional cultures. VIDEOGRAPHERS: Tim Laman, Trevor Frost, Robert Suro, Gunung Pulang Orangutan Project EDITOR: Kathryn Carlson GRAPHICS: Hai-Lam Phan Read the story: Inside the Private Lives of Orangutans http://www.nationalgeographic.com/magazine/2016/12/orangutans-behaviors-borneo-sumatra/ Watch Orangutans Build Umbrellas, "Kiss-Squeak," and More | National Geographic https://youtu.be/3hfkDJ-r3DQ National Geographic https://www.youtube.com/natgeo

Snail Hits Predator with Its Shell | National Geog...

دو سال پیش ۱۷۸ بازدید

Watch this Japanese snail defend itself by swinging its shell. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Two subspecies of snails defend themselves from predatory attacks by swinging their shells. In a study released by Scientific Reports, an international team of researchers observed two types of snails—Ezohelix gaines from Japan and Karaftohelix selskii from Russia—hitting carabid beetles with their shells and knocking them over. Most snails withdraw into their shells and wait until their attackers leave them alone. The researchers suggest that the type of shell and the snails’ defense strategies are interrelated. They also conclude that interactions with predators play a significant role on how snails evolved to defend themselves. Study from Scientific Reports: http://www.nature.com/articles/srep35600 Snail Hits Predator with Its Shell | National Geographic https://youtu.be/sgMnEDmx2sg National Geographic https://www.youtube.com/natgeo

فوتبال بازی کردن در فضا چگونه است

دو سال پیش ۱۳۹ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.

A Sea Creature You Can See Right Through | Nationa...

دو سال پیش ۲۳۶ بازدید

Juvenile eels are transparent until it's time to metamorphose. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta A Sea Creature You Can See Right Through | National Geographic https://youtu.be/K0VdwlAPU3A National Geographic https://www.youtube.com/natgeo

Ghost Shark Caught on Camera for the First Time | ...

دو سال پیش ۲۱۹ بازدید

The pointy-nosed blue chimaera, a species of "ghost shark," was captured on camera for the first time in 2009. Video courtesy Monterey Bay Aquarium Research Institute. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Previously discovered in the deep sea near Australia, New Zealand, and New Caledonia, researchers observed the pointy-nosed blue chimaera in the North Pacific for the first time in 2009. This footage was captured by a remotely operated vehicle as far as 6,700 feet below the ocean surface. Only recently were experts able to confirm that these fish were the same species as the ones that were previously discovered in the Southern Hemisphere. DNA sampling still needs to be conducted to be certain. Read more about this odd-looking fish, which also sports a retractable sex organ on its head. http://news.nationalgeographic.com/2016/12/pointy-nosed-blue-chimaeras-ghost-sharks/ Video courtesy Monterey Bay Aquarium Research Institute Ghost Shark Caught on Camera for the First Time | National Geographic https://youtu.be/s4uwDrdLfS4 National Geographic https://www.youtube.com/natgeo

علمی تخیلی یا مکانیزم واقعی؟

دو سال پیش ۲۳۳ بازدید

نشنال جئوگرافی، نام سازمانی غیردولتی است که در سال ۱۸۸۸ میلادی در ایالات متحده آمریکا تأسیس شد. هم‌اکنون انجمن جغرافیای ملی از بزرگ‌ترین سازمان‌های غیردولتی مردم‌نهاد در جهان است که هدفش را بر معرفی و حفاظت از آثار طبیعی، باستان‌شناسی، زیست‌شناسی و علوم جغرافیایی بنا کرده است.


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