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'Closer than people think': Woolly mammoth 'de-extinction' is nearing reality — and we have no idea what happens next
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How did sharks become Earth's 'ultimate survivors'? Paleontologist John Long finds answers in new book 'The Secret History of Sharks'
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'The simplicity of life just hits you': Watch rare footage of critically endangered eastern lowland gorilla feeding her baby in the wild
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Orcas start wearing dead salmon hats again after ditching the trend for 37 years
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Orca quiz: Will you sink or swim?
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Dinosaur puke and poop help reveal how they took over the world
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Green spoonworm: The female tentacle monsters that turn males into 'living testicles'
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Wolves in Ethiopia spotted licking 'red hot poker' flowers like lollipops
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'She turns her siphon into a gun': Watch coconut octopus firing stones at fish in world-1st footage
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Shark quiz: How much do you know about these iconic ocean superstars?
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'It's risky for male frogs out there': Female frog drags and attempts to eat screaming male
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'Lovely freak of nature': Mutant blue frog hops into wildlife sanctuary workshop
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'Kermit the Frog' creature that lived 270 million years ago looked like a 'stout salamander' with 'cartoonish' grin
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Why is a mushroom growing on a frog? Scientists don't know, but it sure looks weird
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Dinosaur-era frog found fossilized with belly full of eggs and was likely killed during mating
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Annual cane toad kill-a-thon is about to start in Australia. Here's how to eliminate the pests humanely.
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World's tiniest fanged frog with males that 'hug' their babies discovered
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Paradoxical frog: The giant tadpole that turns into a little frog
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Toxic pigment that causes red hair discovered in 10 million-year-old frog fossil
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Three remarkable spiders: A vegetarian, a vampire and a predator that uses 'pincer, fork and key'
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REFERENCEWolf spiders: Behavior, bites and other facts
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We now know why tarantulas are hairy — to stop army ants eating them alive
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Brazilian wandering spiders: Bites & other facts
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ReferenceGiant huntsman spider: The world's largest spider by leg span
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ReferenceBrown recluse spiders: Facts, bites & symptoms
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Giant, invasive Joro spiders with 6-foot webs could be poised to take over US cities, scientists warn
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Diving bell spider: The only aquatic arachnid that creates a web underwater to live in
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Deadly male funnel-web spider 'Hercules' breaks record as biggest ever discovered
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Do ostriches really bury their heads in the sand?
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Mice on remote island that eat albatrosses alive sentenced to death by 'bombing,' scientists decree
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Meet 'small diver': One of the tiniest penguins ever discovered
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Nearly half a million 'invasive' owls, including their hybrid offspring, to be killed by US
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Reference12 of the biggest birds on Earth
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Crows can count out loud, startling study reveals
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32 of the most colorful birds on Earth
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East Africa's Lake Nakuru almost doubled in size in 13 years — and that's bad news for flamingos
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World's oldest wild bird is 'actively courting' after losing long-term mate
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Watch 'spaghetti monster' with dozens of pink-tipped sausage legs swimming near Nazca Ridge
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Otherworldly video captures rare jellyfish with a hitchhiker in its bell
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Newly discovered jellyfish is a 24-eyed weirdo related to the world's most venomous marine creature
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Alien-like giant phantom jellyfish spotted in frigid waters off Antarctica
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Thousands of cannonball jellyfish wash ashore after swarming North Carolina’s Outer Banks
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Thousands of jellyfish swarm near Israel, mesmerizing images reveal
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Largest crown jellyfish ever discovered is a blood red, saucer-like weirdo
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Scientists inserted disco 'strobe lights' into jellyfish to see how they function without brains
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Giant 'phantom jellyfish' that eats with mouth-arms spotted off California coast
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1-in-100 million 'cotton candy' lobster caught off New Hampshire alive and well at aquarium
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'You can see its guts and things': Weird see-through crustacean with giant eyes discovered off the Bahamas
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Crabs keep evolving to go from the sea to the land — and back again
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More than 10 billion snow crabs starved to death off the coast of Alaska. But why?
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'Hauntingly beautiful' image of a golden horseshoe crab wins wildlife photography competition
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Hoff crab: The hairy-chested crustacean that farms bacteria on its hairs
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Pom pom crab: The crustacean that uses anemones as boxing gloves
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Watch cannibal crab gobble up baby crablets in Australia in David Attenborough's 'Our Planet II'
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Why do animals keep evolving into crabs?
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Dinosaur puke and poop help reveal how they took over the world
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Largest dinosaur ever auctioned sells for over $6 million — and it's twice as long as a school bus
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35,000-year-old saber-toothed kitten with preserved whiskers pulled from permafrost in Siberia
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Mammoth quiz: Test your knowledge of the ice age beasts
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Cretaceous 'Pompeii' of China isn't what we thought
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Armored dinosaur could withstand the impact of a high-speed car crash, thanks to the 'bulletproof vest' over its plate armor
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A giant crocodilian killed the largest 'terror bird' ever found, 12 million years ago
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Oldest tadpole on record was a Jurassic giant
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Predatory birds from the Jurassic may have driven cicada evolution for millions of years
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Shark quiz: How much do you know about these iconic ocean superstars?
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Incredibly rare, ghostly white shark discovered off Albania
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380 million-year-old remains of giant fish found in Australia. Its 'living fossil' descendant, the coelacanth, is still alive today.
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Northern sea robin: The bizarre fish with crab legs it uses to taste the seafloor
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Stunning video shows sharks devouring sea urchins, spines and all
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Alligator gar: The 'living fossil' that has barely evolved for 100 million years
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How did sharks become Earth's 'ultimate survivors'? Paleontologist John Long finds answers in new book 'The Secret History of Sharks'
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Angular roughshark: The pig-faced shark that grunts when captured
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Watch baby Japanese eel escape from stomach of predator in X-ray video
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Plastic-eating mealworms native to Africa discovered
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Watch mesmerizing video of weird waves that 'shape life itself' inside a fly embryo
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Parasitic 'horror' wasp that bursts from a fly's abdomen like an 'Alien' xenomorph discovered in Mississippi backyard
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Kamikaze termites blow themselves up with 'explosive' backpacks — and scientists just figured out how
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These bacteria trigger a sex change in wasps — scientists finally know how
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Panda ant: The wasps whose black and white females have giant stingers and parasitic babies
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Ants perform life saving operations — the only animal other than humans known to do so
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Butterflies cross Atlantic ocean on 2,600-mile non-stop flight never recorded in any insect before
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Scientists discovered the oldest termite mounds on Earth — and they're 34,000 years old
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Mountain lions in Los Angeles are becoming nocturnal to avoid humans
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Smarter dogs have smaller brains, surprising study reveals
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Vampire bats have a really strange way of getting energy, scientists discover after putting them on treadmills
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We finally know why dogs shake when they're wet
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Cats are better at word association than human babies are, study finds
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Polar bears are getting horrific injuries and huge 'ice balls' on their paws because of climate change, researchers say
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New DNA findings shed light on Tsavo's infamous man-eating lions
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Why do cats 'chatter'?
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'The simplicity of life just hits you': Watch rare footage of critically endangered eastern lowland gorilla feeding her baby in the wild
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Orcas start wearing dead salmon hats again after ditching the trend for 37 years
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Orca quiz: Will you sink or swim?
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Dolphin in the Baltic Sea has been talking to himself — and researchers think it's a sign he's lonely
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Mysterious sound coming from the Mariana Trench has finally been explained
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Sexually frustrated dolphin behind spate of attacks on humans off Japan
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Boat-ramming orcas may be using yachts as target practice toys, scientists suggest
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Watch heartbreaking footage of humpback whale with missing tail in Washington state
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2 young orcas ram sailboat off northern France — 800 miles from 'attack' hotspot
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Ultra-rare whale never seen alive washes up on on New Zealand beach — and scientists could now dissect it for the 1st time
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'She turns her siphon into a gun': Watch coconut octopus firing stones at fish in world-1st footage
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Octopuses burn more calories changing color than you use on a 25-minute run
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Glowing mystery sea slug that feeds like a Venus fly trap captured in deep sea footage for 1st time
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Watch extremely rare footage of a bigfin squid 'walking' on long, spindly arms deep in the South Pacific
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Pacific geoduck: The large, phallic clam that can live longer than 165 years
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Never-before-seen vampire squid species discovered in twilight zone of South China Sea
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Rare video shows elusive deep-sea squid cradling her gigantic, translucent eggs
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Elusive 'octopus squid' with world's largest biological lights attacks camera in striking new video
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Watch female octopus drag male around during sex in rare footage captured off Indonesian island
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Cantor's giant softshell turtle: The frog-faced predator that spends 95% of its time completely motionless
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Gharial: The prehistoric crocodilian that buzzes and blows bubbles to find a mate
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King cobra mystery that's puzzled scientists for 188 years finally solved
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Crocodile quiz: Test your knowledge on the prehistoric predators
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Scientists to read Cassius the giant crocodile's bones to find out exactly how old he was when he died
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Cassius, the world's biggest captive crocodile, may have been over 120 years old when he died
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'Truly primal': Watch Burmese python swallow deer whole in Florida Everglades by stretching its mouth to the absolute limit
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Short-horned lizard: The inflatable 'horny toad' that squirts toxic blood from its eyes
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'Scuba-diving' lizards breathe underwater by wearing air bubbles on their noses — just like in a cartoon
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