Both birds and reptiles lay eggs to protect their young, but despite the basic similarities, the differences between their ...

Parental care for offspring occurs in many animals and is an essential part of the reproduction, propagation and development of an organism. An international research team from Brazil, the U.S. and ...

Animals with larger brains produce fewer, larger offspring, explaining why birds evolved bigger eggs than the largest dinosaurs.

New fossil egg discoveries show early dinosaurs and marine reptiles laid soft-shell eggs like those of turtles, snakes and lizards and not the hard shells of bird eggs today, according to a new study.

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

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The leatherback sea turtle offers a rare look into ...

University of Florida researchers documented a surprising new threat to Burmese python eggs in the Everglades, adding to growing evidence that native wildlife is fighting back against the invasive ...

Laying eggs if you’re an iguana in South Florida isn’t all it’s cracked up to be. One female iguana was recently removed from a Miami resort swimming pool after laying more than two dozen eggs on its ...

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 ...