A close cousin of the jellyfish has evolved over time into a microscopic parasite, new research shows. The finding represents the first case of extreme evolutionary degeneration of an animal body.

Children are taught that all living organisms -- from animals, plants, and fungi to bacteria and single-celled organisms -- belong to specifically different categories of organic life. A new discovery ...

An enigmatic fossil, once considered one of the earliest mollusks, has recently been reclassified by scientists from Durham and Yunnan universities. This discovery challenges our knowledge about the ...

STEVENS COUNTY, Wash. — On July 19, Washington Department of Fish and Wildlife Commission members held a meeting to discuss the future of predators in the state. They talked about a potential permit ...