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

To keep eggs alive, many birds do something far stranger than simply sitting on them. Their bodies physically transform in ...

A 13-year-old parrot named Mithu faces a life-threatening condition as a large, calcified egg is stuck in its pelvic region, ...

The 24 bright green baby parrots began chirping and bobbing their heads the second anyone neared the large cages that have been their homes since hatching in March. The Central American natives, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A bird owner has revealed that her pet parrot laid an egg, so she ...

LOXAHATCHEE, Fla. (AP) — The 24 bright green baby parrots began chirping and bobbing their heads the second anyone neared the large cages that have been their homes since hatching in March. The ...