Researchers have found a link between more noise and light pollution and changes in the way songbirds reproduce, including the number of eggs they lay.

To boost their odds of survival in unpredictable habitats, birds known as "brood parasites" hedge their bets by spreading eggs across other birds' nests.

"It is from an animal the size of a large dinosaur, but it is completely unlike a dinosaur egg."

Upending decades of conventional wisdom, researchers have found evidence that the very first dinosaur eggs didn't have hard shells.

A coating made from eggs that would otherwise be headed to landfills can keep produce fresher for longer. It's also edible or easily washed off.

One enzyme may determine whether human development starts correctly. The discovery could help explain why some fertilization fails.

Were dinosaurs warm- or cold-blooded? New research may end the debate with an answer from dinosaur eggshells.

New research suggests a slight advantage to using fresh donor eggs for in-vitro fertilization (IVF), although that's one factor among many for consideration.

Two species of poison frogs from distant parts of the world both feed their young unfertilized, toxin-laced eggs. New research uncovers why.

"If you blend a computer, you'd end up with tiny bits of computer.... But, lo and behold, the cytoplasm reorganizes."