Jellyfish Lake is popular for snorkeling

Snorkeling in Jellyfish Lake is a popular activity for tourists to Palau.

Top 10 new species in 2011

A group of taxonomists made a 2011 top 10 list of the coolest new animal and plant species discovered last year. A bottom-dwelling batfish tops the list.

Tornadoes in 2011 were extreme

Meteorologist Jeff Masters explains science behind the fierce 2011 tornadoes in the United States.

New fossil primate species found in West Texas

A new fossil primate, a lemur-like creature, among the last of North American primates, once lived in tropical West Texas over 43 million years ago.

Black carbon tracked in the Arctic

Scientists estimate that reducing black carbon emissions could reduce warming in the Arctic by about two-thirds over the next thirty years.

Are worm lizards closely related to snakes?

A lizard fossil from Germany provides evidence that worm lizards and snakes are not closely related, but evolved separately.

Mississippi River flooding in May 2011

The spread of the MIssissippi River beyond its banks in May 2011, as seen by Landsat 5. In the video, the 2011 images are contrasted with images from a year ago.

Neanderthal hunting tactics hidden in reindeer teeth

Neanderthal hunters likely had sophisticated hunting practices similar to those of later humans in the Upper Paleolithic.

Striped bark scorpion deep in the heart of Texas

Live in the Texas Hill Country a while, and you'll probably experience the painful sting of the striped bark scorpion. But don't worry, it's usually not fatal.

Land crab species disappeared from Hawaii 1,000 years ago

It's a new land crab species we'll never see. They disappeared about 1,000 years, not long after the first humans arrived to the Hawaiian Islands.