Parasites can be creepy, but according to some ecologists, parasites may substantially impact entire ecosystems—for the better.

Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?

Extinct in the wild, the Franklinia tree is still cultivated in botanical gardens, private homes, parks, even cemeteries. It's also got an interesting Revolutionary-era backstory.

When an axolotl loses a limb, it regrows, and nary a scar remains. But this incredible creature is on the brink of extinction.

Platypuses. They’re weird. In fact, platypuses are so unusual that it took taxonomists more than eighty years just to decide what they are.

It takes place out of sight of non-anglers, but fish stocking, or adding fish for the benefit of sport fishing, is a widespread practice in resource management.

Beatrix Potter's biography covers a lot more than just cute bunnies getting into trouble in mean old Mr. McGregor's farm. Not that there's anything wrong with that.

Horses were omnipresent in the West until only a few generations ago, but then they were replaced by machines and disappeared from our streets as well as our consciousness.

In a world full of wild insect defenses, bombardier beetles stand out for the violent chemical reaction they employ to deter enemies.

Recently, two baby monkeys were cloned—the first time primates have been successfully duplicated. Why are we so afraid of human cloning?