While mammals are known for feeding milk to their young, some bird species produce a similar substance called crop milk.

An early clip from this new series, narrated by Blake Lively, was viewed more than 8 million times. Here’s what it takes to get the world talking about penguins.

study says Emperor penguins hatch their eggs and raise their chicks on the ice that forms around the continent each winter and melts in the summer months. Ice sheets in Greenland, Antarctica ...

(Four episodes) Images of Emperor Penguins trudging through Antarctic blizzards, huddling together for warmth as they wait for their eggs to hatch, are familiar from a number of wildlife ...

Emperor penguins require stable, ‘fast’ ice (sea ice which is connected to the land) for about nine months of the year as a platform to mate, incubate their eggs, raise their chicks, and replace their ...

The device is “digitally preset to the optimal temperature and humidity conditions for hatching hen eggs,” Theriault explained. “After the chicks hatch, we will move them into a brooder ...

Like mosquitoes and dragonflies, mayflies hatch from eggs laid in the water, go through an aquatic larval stage and emerge as flies. The research found that even though mayflies leave behind other ...

The aviary announced the hatchlings on their website. A spokesperson said the remaining two eggs could hatch within the next few days. “Round-the-clock care is needed from both parents during ...