Piranha--ferocious fighter or scavenging softie? Find out on this Moment of Science.
When whale carcasses fall to the sea floor, they become food for a vast and complex array of ocean creatures, a community called a whale fall.
Believe it or not, the Australian burrowing cockroach, also known as the rhinoceros cockroach, is one of Australia's most popular pets.
Eating snow to obtain water is metabolically expensive–it would take too much energy to melt down enough snow. Consequently, polar bears have evolved so that they don’t need to drink free water.