Discover the blue whale, the biggest animal to ever live. Learn its size, diet, and surprising facts about this ocean giant.

The Numbers First The only intact blue whale heart ever preserved and studied in detail came from a specimen that washed ...

From river giants to land-dwelling beasts, these are the biggest creatures walking, swimming and flying across our planet ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. When we think about the scope of our world’s diversity, ...

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 ...