Summary: A global study of vertebrates reveals that body temperature is the key driver behind brain size evolution.

Due to its vast size — stretching from Canada and Greenland in the north, to Mexico in the south — North America contains a ...

Ever wondered which animals have the biggest ears in the animal kingdom? Read this interesting article on seven remarkable creatures from the mighty elephant to the fennec fox, learn how their ...

Minnesota has many habitats that are teeming with animals, some of which are impressively big. Here are the largest.

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold.

Large mammals in Yellowstone adapt to summer heat by changing behavior—shaped more by landscape than biology, a new study ...

Eggs are one of nature’s most fascinating creations. They come in many sizes, shapes, and colours. There are a variety of ...

What are some animals that give birth to huge numbers of offspring at once?” (Watch a female sea urchin produce millions of eggs.) The mola, or ocean sunfish, looks like an animal cracker someone bit ...

The Antarctic blue whale (Balaenoptera musculus ssp. Intermedia) is the largest animal on the planet, but it is critically ...

On one of the coldest mornings ever in Florida, a young green sea turtle flailed through freezing surf. Too stunned to swim, ...

In the Brazilian state of Para, deep in the Amazon, mile upon mile of deforested land flanks the dusty road. Pastureland ...