Each of the three types of water contained either algae, penguin poo, or a mixture of both. After testing each group four times, the team found that krill reacted strongly to the scent of the ...

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 ...

All of a sudden, a penguin appears like a voracious giant, streamlined like a torpedo, chasing and consuming thousands of krill at rapid speed. Now, researchers have shown that the water-borne smell ...

From the iconic emperor penguin to the Magellanic penguin, these striking photos capture the beauty of the aquatic birds.