The diagram shows how mercury can accumulate in the food chain. In the sea, tiny animals and plants called plankton absorb the mercury compounds. When the plankton are eaten by small fish ...

The two most prominent types of plankton in the ocean are zooplankton, which are tiny animal organisms ... so does the entire ocean food chain. When environmenmental conditions change, often ...

A common neurotoxin produced by algae blooms is making California sea lions more aggressive. Here’s why it has the power to change behavior—and the danger it poses.

Levels of lead and other heavy metals spiked in L.A.’s coastal waters after the January fires, raising serious concerns for the long-term health of the marine food chain.

Here in the sea, seaweed and plankton do the job. A plant that converts the Sun's rays into energy is called a producer. They are the start of a food chain. Animals get all the energy and ...