Oh! The birds have knocked it off. Laying your eggs in a nest is much safer, because then they're better protected and can't fall out. Lots of other animals lay eggs too. This egg is starting to ...

The kiwi lays the largest egg in proportion to its body size of any bird in the world. It weighs 371 grams, which is 15% of the kiwi's body weight ...

Nature is full of surprises, including animals that can change from male to female. Discover why and how some species undergo sequential hermaphroditism and end up laying eggs. 60 vintage photos ...

A 1-degree-Celsius change in water temperature prompts sea turtles in Northern Cyprus to lay eggs nearly a week earlier on average.

There are more viviparous shark species - which bear live young - than sharks that lay eggs. But throughout Earth's oceans, viviparity occurs in a variety of forms. Whale sharks (Rhincodon typus) are ...

The bird flu outbreak is largely due to the close quarters and poor conditions of farmed animals in factory farming ...

Consumers disgusted with high egg prices may either decide to give up their favorite breakfast food, cut out the baking or take the plunge into raising their own laying hens.

Certified Humane and AHC, two of the largest animal welfare third-party certification programs, created pasture standards for egg-laying hens, and Global Animal Partnership will do so later this year.

A Northern California farm animal rescue group ... The age of the fertilized eggs also matter. Birds that lay multiple eggs over a period of days practice delayed incubation.