From Maine coons to Siberian tigers, these are the big boys and girls of the animal kingdom put into perspective.

When it comes to African wildlife, few things capture the imagination like the Big Five animals. I still remember the first time I saw a rhino. It was about 20 years ago, and I was on my first ever ...

How do snakes manage to swallow and digest animals that are bigger than their heads? Unlike humans and many other animals, snakes don’t chew their food. They swallow their prey whole, which can ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

A comparison of 263 species supports the idea that large animals have higher rates of cancer than smaller ones. But the increase is less than expected, suggesting they have evolved ways to lower their ...

LOCKPORT (WLS) -- The sound of a howling wolf or a hungry tiger isn't out of the norm for the neighbors who live near the Big Run Wolf Ranch. The federally licensed non-profit education facility that ...