Levels of lead and other heavy metals spiked in L.A.’s coastal waters after the January fires, raising serious concerns for ...

A food chain shows how animals obtain their food ... and bigger fish are eaten by sea lions who are then eaten by sharks! There are lots of different food chains taking place around us but ...

The result? A frightening phenomenon that's making seawater more acidic, spelling disaster for many marine animals, from plankton and coral up the food chain to sea stars, salmon, sea otters, whales — ...