Large-scale disruptions to life may ultimately increase ecological complexity over geologic timescales, though the risk of ...

EMBL research reveals body-wide signals and enzymes that reshape tissues, restoring proportions even after severe damage in ...

For over a century, biologists have puzzled over the origins of animals that first emerged in ancient oceans more than 600 ...

In a paper published today, Nov. 28, in the journal Science, an international team of researchers from the U.S., Kenya and the UK provide the first direct evidence of two different ancient human ...

Footprints preserved on the shore of Lake Turkana in Kenya seem to be from two ancient human species, showing they lived ...

Ancient fossil footprints are the first evidence of two different hominin species − Homo erectus and Paranthropus boisei − ...

A live virus vaccine contains a live, weakened (attenuated) virus that helps your body develop an immune response without you developing symptoms of the disease it is intended to prevent. Examples ...