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.

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.

The four most concerning female parasites lay eggs at different rates. For instance, a female brown stomach worm will lay about 200 eggs per day, while a female barber pole worm can lay 10,000 eggs a ...

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.

"These are animals that you need to do some research ... O'Connor said a healthy hen will lay an egg every 26 hours on average, though egg laying can be inconsistent. O'Connor said her five ...

The creature spends most of the year underground and migrates to temporary pools and ponds to mate and lay egg masses.