Humans have long experimented with nature, bending evolution to serve aesthetics, science, and curiosity. Some animals have ...

We like to draw a line between humans and animals, a clear divide built on memory, empathy, and invention. But that line doesn’t always hold. Apes steal territory. Parrots ace memory tests. Bees react ...

Feb. 7, 2005 — -- Animal-human hybrids have long been the stuff of fairy tales and myths -- from the half-man, half-horse centaur to singing mermaids. Now the swift pace of genetic engineering ...