Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...

Over seven years, 600 supporters have helped raise nearly $126,000 to protect endangered sea turtle eggs.

Q. Do brown-headed cowbirds pick the nest of another bird to lay eggs in based on which kind of bird raised them as a ...

Spring is in the air. Birds are singing and beginning to build their nests. It happens every year, like clockwork. But a new study in the Journal of Animal Ecology shows that many species of birds are ...

Although these babies and parents may offend our mammalian sensibilities, their species have evolved their own way of showing ...

Add Yahoo as a preferred source to see more of our stories on Google. Hens lay about one egg per day, on average. Even fewer of us have seen it the way the folks at @chickenwifehappylife captured it.

"It's hard not to feel like a proud parent seeing them out there thriving and making history," London Zoo bird keeper Charlotte James said Jonny Shepherd/TNC-ZSL; TNC-ZSL The once-extinct Sihek bird ...