Grizzly bears are huge. But how huge depends on age, sex, time of year, and more. Here’s a full breakdown.

As invasive pythons choke the life out of South Florida, it’s down to a loose-knit group of thrill-seeking bounty hunters to get rid of them

Here’s how to safely””and successfully””take out one of the most destructive invasive species in North America

Invasive pythons have wreaked havoc on the Everglades. Here are the biggest ever captured in Florida’s wilds, including the record-breaking 19-footer taken this month

A full breakdown of the average and top-end weights of the four North American bear species

If you’re planning to outrun any kind of bear, it helps to know what you’re up against

Was that a huge coyote you saw””or could it have been a wolf? Here’s everything you need to know to tell these wild canines apart

Check out our top 10 list of the longest-living sharks, including one species that can survive for a whopping 500 years

These monster wels catfish landed in Europe all dwarf any catfish caught in North America

A researcher aboard the boat called the epic encounter a “positive surprise”