Every animal and plant needs food ... chains usually start with a plant and finish with a big hungry animal… The longest recorded food chain involves over thirty organisms found in the deep ocean.

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

“Species at each level of the food chain, from invertebrates to fish, birds, marine mammals and humans, can be affected differently based on their physiology and feeding strategies,” she said.