In the animal kingdom, pregnancy rarely follows the rules, with many species being pregnant for a year or more.

Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

One of the world’s most famous birds has returned to her nesting site. Wisdom, the 75-year-old albatross is known as the ...

Q. When we studied high school biology, our teacher said more than 99% of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Sheetal Kumari is a skilled sub-editor and content creator with expertise in digital news, multimedia storytelling, and social media content. With a strong grasp of topics like science, politics, and ...

Q. I am doing a project on different types of eggs in the animal kingdom. Can you tell me the approximate percentage of animals that lay eggs? I know mammals do not and birds do. What about other ...

A tree frog: female (larger individual below) laying eggs, which are protected by the 'foam nest' and male (smaller individual above). When it comes to laying eggs, tree frogs have some unusual habits ...

Scientists are able to use simple purification method to extract high quantities of protein with no harmful effects on the chicken that lay eggs normally. The study was primarily focused on producing ...

Environmental science major Jakub Zegar ’20 has focused his research in conservation biology, herpetology and amphibian thermoregulation while pursuing a STEM education minor at Drexel. He combines ...