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.

If zooplankton fail to reproduce, it disrupts the food chain ... under greater stress. More information: Rebecca J. Duncan et al, Seasonal environmental transitions and metabolic plasticity in a ...

An animated sequence that illustrates and explores food chains. A simple food chain – plant, caterpillar, mouse, owl - is presented as a set of interlocking jigsaw puzzle pieces. An underwater ...