Narrator: At first glance, a fire ant hill — or mound ... The mound is really the top of an enormous underground structure: the nest. Which is basically a giant nursery: a nice, cozy place ...

In the early 2000s, a team of scientists discovered a mega city built by ants beneath the Earth's surface. The finding was documented and later published in a 2006 video documentary titled Ants ...

A study by the Jane Goodall Institute Spain and the University of Barcelona shows that chimpanzees remember the exact ...