Profile of tetrapods, a group of vertebrates that includes amphibians, reptiles, birds, and mammals.
Bonobos face a precarious future unless they receive better protection throughout their current range, a new study reveals.
Profile of cobras and their relatives, a group of snakes that include mambas, kraits, death adders, sheildnose cobras, whipsnakes, spitting cobras, and many other groups.
Profile of sirenians, also known as sea cows, a group of mammals that includes dugongs and manatees.
Profile of oceanic dolphins, a group of cetaceans that includes dolphins, pilot whales, and killer whales.
It's the stuff of low-budget sci-fi movies: rodents around the globe are growing ever larger at astonishing rates.
Leaf-cutter ants are crafty cultivators. They tend vast gardens of fungus that they harvest to feed their minions.
For the first time, scientists have deciphered the genetic sequence of an extinct species, an Pleistocene cave bear.
Profile of chelicerates, a group of arthropods that includes harvestmen, scorpions, mites, spiders, horseshoe crabs, sea spiders, and ticks.
Profile of myriapods, a group of arthropods that includes millipedes, centipedes, pauropods, and symphylans.