Its appetite hinges on nutrient-rich krill swarms, so climate shifts that shrink krill threaten energy reserves and migration. Read on to discover the 12-inch-thick throat muscles and a 90-second gulp ...

Regarded as some of the largest animals in our oceans, which creature is bigger: the giant squid vs blue whale? While blue whales are well-studied, very little is known about giant squid. But just how ...

Size comparison of a modern blue whale (Balaenoptera musculus) and the extinct Perucetus colossus, known from a fossil discovered in Peru. Researchers initially estimated the mass of Perucetus as ...