What is the difference between a llama and an alpaca?
Animals
Ancient predatory whale with big eyes and razor-sharp teeth was 'deceptively cute'
115-million-year-old dinosaur footprints discovered in Texas after devastating floods
No, blue whales won't go silent off the coast of California. Here's why.
Texas cougar genes are saving Florida cougars from extinction—for now.
Headless Chicken Monster: A Deep-Sea Sea Cucumber With Sediment-Eating Tube Legs
Why do cats and dogs eat grass?
The mystery of why starfish turn into slime has finally been solved — and it's not what scientists thought
'It looks like size really does matter': Males of four previously unseen tarantula species have record-breakingly long genitalia.
The 'most remarkable' Jurassic sea monster fossil from Germany belongs to a previously unknown species.
Watch as crabs beat up robot 'Wiggle Dave' after he infiltrates their claw-swinging competition
'Big starfish,' 'little sweet potato' and dozens of previously unseen species recorded during deep-sea expedition off Argentina
Watch as a pod of killer whales pretend to drown one of their own during a terrifying training session
A creepy new giant insect could be the heaviest ever recorded in Australia.
Aye-aye: Strange nocturnal lemurs with long, creepy toes
