When you lay an ostrich egg next to chicken, goose, and duck eggs, it's a bit like looking at a set of Russian matryoshka dolls, those cute little wooden moppets that nest snuggly inside of each other ...

In the wild, ostriches live in the dry and sandy regions of central and southern Africa. They live in flocks of between 5 and 50 individuals. However, when it comes to breeding, they form groups of ...

The number of eggs a bird lays — its clutch size — varies greatly among species. You might think every species should simply lay lots of eggs because that would increase the odds of more young birds ...