Andrea Mustain

Feisty males make breeding these little leopards in captivity a challenge.

These tree huggers can be deadly.

Underground rock movements surprise geologists.

These tree huggers can be deadly.

Getting to know people who once ate people in a new National Geographic Channel documentary.

It was goodbye forever to the historic first South Pole station.

This giant, putrid bloom would be a favorite of Hannibal Lecter.

Can America's wild bison make a comeback?

Near Western Australia, coral are gearing up for a spawning party.

This exotic bloom packs a punch to the nose in the name of procreation.

Can America's wild bison make a comeback?

Long-planned tsunami drill falls just after Japan tragedy.

These relatively low magnitude quakes produce freakishly large waves.

A new model has vastly improved predictions, but work remains.

A new website shows nature when it thinks nobody's looking.

Secret cameras catch animals in unguarded moments.

The butterflies will show up in the U.S. soon — to live or die in Texas.

Scientists followed shark's ocean journey from Florida to New Jersey.

The iconic Arctic species is embroiled in legislation and lawsuits.

The delicate drawing of the dramatic peak is from the mid-1800s.

A reporter discovers the birding bug is dangerously contagious.

The Great Backyard Bird Count is an inclusive event anyone can join in.

The little female kitten, just five weeks old, is doing well.

Report tallies weather disasters that cost at least a billion a piece.