When a penguin does this to a human, it can signify general interest or trust. A Cooing Baby Chick Baby Adélie chicks like this one often make noises if they need something.

Penguin poop in Antarctica is helping to create clouds that shield them from the effects of human-caused climate change. Also known as guano, researchers say the poop releases ammonia that ...

The foul stench of penguin poop sets Antarctic krill on edge. In lab experiments, the mere scent of penguin droppings — or guano — sent krill scrambling for escape, researchers report March 20 ...

Penguin poop may be playing a key role in keeping climate change in check over Antarctica, new research published May 22 finds.

Penguin poop, also known as guano, is notoriously smelly. But the ammonia in the birds’ excrement does more than just stink—it can play a role in cloud formation over Antarctica. Those clouds ...

New ancient DNA research on Adélie penguin poo in Antarctica shows how several species respond to environmental change over time, including southern elephant seals.

The first Adelie penguin chicks of the season -- black fluffballs small enough to hold in the hand -- started hatching this month, and the simple fact that there are more of them in the south and ...