The beaks of albatrosses and penguins, compared to other, “normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ...

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 ...