A perfectly simple food chain. And we can see food chains happening ... food chain involves over thirty organisms found in the deep ocean. Human activities like deforestation, pollution, and ...

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

“Most of these metals are easy to transfer through the ... “Species at each level of the food chain, from invertebrates to fish, birds, marine mammals and humans, can be affected differently ...