An ancient cave bear adult and cub mummy have been found in the melting permafrost of Siberia.
Scientists have discovered the oldest known sperm, dating back 100 million years, crammed in the body of a tiny crustacean.
One of London's Wildlife Photographer of the Year honorees shows an endangered crocodile carrying 100 babies on his back
Stingrays are an instantly recognizable fish. The graceful swimmers glide through the water by undulating the edges of their flat, pancake-like bodies.
Analysis of this Triassic vertebrate's ever-growing tusks revealed that it may have spent part of the year hibernating.
Locusts are described by their two dramatically different behavior patterns: Either docile and solitary, or active and sociable, forming gigantic, ravenous swarms.
Swarms of bacteria can survive encounters with antibiotics because some of the dying microbes emit "chemical death cries," an action known as necrosignalling.
A bit of peanut butter lured the wee mammal out from the rocky lands of Djibouti in the Horn of Africa.