Researchers say the skull belongs to an Australopithecus species once thought to be a predecessor to “Lucy,” but now that relationship is murky.

To see if the spiky fish shares signaling pathways found in other organisms, scientists scooped up specimens during a mating frenzy on the shores of Japan.

The Indiana University professor was known for his research on the evolution of organismal development.

Insect wings may have evolved from multiple origins, say researchers.