Why do you think giraffes have such long necks? It’s a question that has perplexed scientists for years. Do you think giraffes have long necks to reach food in high places? Maybe you are onto ...

Well before evolving to help vertebrates breathe underwater, gills played an early and equally important role regulating the salt and pH balance of blood, according to surprising new research. Gills ...

The outer ear is unique to mammals, but its evolutionary origin has remained a mystery. According to a new study published in Nature from the USC Stem Cell lab of Gage Crump, this intricate coil of ...

Dorit Hockman is in the Department of Human Biology, Division of Cell Biology, University of Cape Town, Cape Town 7925, South Africa. This theory needs to be tested, but, without travelling back in ...

Gills are best known for helping most fish species breathe underwater. But less well known is the fact gills regulate the salt and pH balance of fishes’ blood, a vital role played by the kidneys in ...