A newly described fossil reveals that leeches are at least 200 million years older than scientists previously thought, and that their earliest ancestors may have feasted not on blood, but on smaller marine creatures. 

UCR-developed technology will allow scientists to peer deeper into the universe

How global warming may overcorrect into an ice age.

Research led by a physicist at the University of California, Riverside, shows how viruses form protective shells, or capsids, around their genomes — a process that, while messy and complex, consistently results in highly symmetrical icosahedral structures.