Mercury (Hg) is a naturally occurring element found across the globe, yet it becomes highly toxic as it accumulates up the ...

Discover the strategic, stealthy predators that turn this animal into their prey. Learn how bears turn from the hunter to the hunted.

The addition of heavy metals into the water system could impact the food chain. Melting permafrost in the Arctic is releasing toxic mercury into the water system, potentially impacting the food ...

The Arctic is changing – and not just in the ... which scientists say could harm tiny sea creatures that are key to the food chain. In a recent study published in Nature Communications ...

GalleryIn her project 'Under the Ice of the Arctic, Mercury,' French photographer ... creating a bioaccumulation effect along the food chain. The consequences for humans can be severe.

D:But they affect the Arctic food chain, right? Y:Right. Polar bears eat ringed seals, so if baby seals keep dying off, eventually there will be a decline in the seal population. Which means ...

But the shift in the Arctic food chain means that the big numbers of gray whales seen since they recovered from whaling — a population some 27,000 strong — probably will not be seen again.

But the shift in the Arctic food chain means that the big numbers of gray whales seen since they recovered from whaling — a population some 27,000 strong — probably will not be seen again.