It is easier for a person ... whales face two challenges: storing enough oxygen to hunt successfully and withstanding the enormous pressure. High pressures change the uptake of gas in the body.

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ... Unlike fish, whales have lungs, not gills. That means they must ...

Plus, the nutrient inputs of blue whales—the largest animals ... of concerted conservation efforts. “Lots of people think of plants as the lungs of the planet, taking in carbon dioxide ...