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 ...

They're one of the only bird species to do this. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Researchers have cracked the case of why ...

(via SciShow) In what seems like an inefficient use of resources, these penguins always lay two eggs, but then ignore, discard, or just straight-up destroy the first one. What gives, penguins? Related ...

First, the Emperor Penguin was placed in a bin to be weighed. The little guy was so interested in his surroundings. Then he ...

A new analysis of old data suggests that the endangered erect-crested penguin's bizarre nesting habits -- rejecting the first egg they lay -- is because they can't feed two chicks, and the second, ...

Downy emperor penguin chicks like these are vulnerable to freezing and drowning if the sea ice they’re born onto doesn’t hold out. Photo: vladsilver (Shutterstock) Emperor penguins are at severe risk ...