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 in ...

Learn more about how the smell of penguin poo causes krill to stop eating and move frantically.

Editor's note: This is part of a series of videos offering an up-close perspective on the animal kingdom. A special 360-degree video camera system was set up in zoos and other facilities to show ...

Successful breeding was strongly related to the amount of krill in the diet, with few chicks fledging in years where krill was particularly scarce. The longest and most comprehensive study to date ...