Because of this, penguins are less contaminated with mercury than toothed whales, giant petrels, and other predators higher in the food web. The scientists, who used X-ray absorption spectroscopy ...

Because of this, penguins are less contaminated with mercury than toothed whales, giant petrels, and other predators higher in the food web. The scientists, who used X-ray absorption spectroscopy ...

Penguins are the latest animal group to be ... "Skuas winter around South America as do giant petrels and we think these birds are the vector that bought the disease into South Georgia," said ...