Food chains. Every animal and plant needs food to live, and they are all part of a food chain. A food chain shows how animals obtain their food.

According to 130,000 years' worth of data on what mammals have been eating, we're in the midst of a mass biodiversity crisis. Not great! "While about 6 percent of land mammals have gone extinct in ...

Most food chains start with a green plant, because plants make their own food by photosynthesis. A consumer is a living thing that eats other plants and animals. Food chain basics: ...

Rising through food chains. When wild animals consume rat poison — typically, by eating a poisoned rat — the effects may include internal bleeding and lesions, lethargy and a reduced immune ...

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 fish, marine mammals and the marine food chain ...