Biologists say species population has sufficiently recovered.

Their fur may be white, but their skin is black.

Lizard features bumblebee-like black and yellow stripes.

This little predator was hard to find.

The new addition will be called Glen Garry, after a Scottish glen.

They're the tallest animal on Earth with necks that are 6 feet tall!

Birds, big cats and monkeys abound.

Thousands of acres of Maya Biosphere Reserve covered.

Finding out what's down there is a big task, complicated by microorganisms' wily ways.

Herman Posada answers questions in English and Spanish.

The true story of "Operation Breakthrough's" whale rescue.

The annual southward migration of gray whales began earlier than usual this year.

Predatory crabs could come to occupy Antarctica's continental shelf ecosystem within two decades.

Hundreds of non-native species thriving at expense of native ecosystems.

Sniff this rare flower at your own risk.

Rotten flesh smell lingers at Binghamton University greenhouse.

Giant sharks tagged to follow their travels.

Plants weathered rock, changing rivers' courses.

This bizarre nocturnal flower lives fast and dies young.

Plant and animal species even richer than Galapagos Islands.

Why some places have more species than others.

Forty gentoo penguins are visiting from Edinburgh Zoo.

Clams and other creatures found around vents near Mariana Trench.