PORT CHARLOTTE, Fla. — Pitchers and catchers are back, signaling another Opening Day is not too far ahead. But first comes the state's annual rite of spring, Major League Baseball's Spring Training ...

A prototype cell partly capable of replicating itself has been created using 36 existing bacterial genes, but it's not really ...

Warming Pacific waters and El Niño could disrupt California marine food webs, raising risks for seabirds, fisheries and coastal ecosystems.

Nearly 660 kilometers (410 miles) beneath Earth's surface lies one of the planet's most important internal boundaries. Known ...