Pigeons, doves, and flamingos secrete this nutrient-rich fluid from their crop to nourish their chicks. Emperor penguin fathers also produce a milk-like secretion from their esophagus, providing ...

The cliff-diving chicks that Gregory observed may have ... to assume caretaking while they trek out to the ocean to feed. Male emperor penguins spend the next two months incubating the eggs ...

And it’s home to penguins. Yes, the flightless birds ... Ready to return to feed her chicks, this behemoth, 70 times her size, comes after her. It’s a moment more sensitive viewers will ...

Emperor penguins, nature’s ultimate survivors ... As one parent returns from the sea with a full stomach to feed the chick, the other departs to replenish their own reserves. This continuous cycle ...

Time has taken on a different dimension, partly because there’s no night. The light fades between midnight and 2am, but it is ...

Even after the chicks hatch, these devoted dads stand ... Braving Antarctica's fiercest conditions, emperor penguin fathers cradle a single egg on their feet, tucked under a flap of skin.

Emperor penguins, nature’s ultimate survivors ... As one parent returns from the sea with a full stomach to feed the chick, the other departs to replenish their own reserves. This continuous cycle ...

All around us, creatures are quietly getting on with secreting—oozing not just milk and tears, but beautiful homes, musical ...

Find Penguin Eating stock video, 4K footage, and other HD footage from iStock. Get higher quality Penguin Eating content, for less—All of our 4K video clips are the same price as HD. Plans and pricing ...

A new study urges expert to classify emperor penguins as “Endangered” — or worse. Here's what science says and what you can ...