Monkeys playing rock-paper-scissors regret bad choices

Monkeys can, like us, feel remorse over the road not taken - at least when it comes to rock-paper-scissors - say researchers.

Hottest summers now might be coolest summers by 2050

Coolest summers may be hotter than the hottest summers of the past 50 years for many areas of the globe if greenhouse gases continue to rise, study shows.

Lemurs are an island unto themselves

Madagascar's diverse lemur population can be described by many adjectives: tiny, jumpy, creepy and smelly, to name a few. Read more about lemurs.

Ocean gyres explained by Emanuele Di Lorenzo

Think about stirring your morning coffee and the liquid spinning, then imagine that happening on an oceanic scale. Voila! An ocean gyre. Read about ocean gyres.

Highest-flying bird record crossing of Himalayas

What is the world's highest-flying bird? It's the Bar-headed goose, and it can reach the height of Mount Everest from sea level in just eight hours.

Predicting the tipping point of an ecosystem?

Scientists studying a remote Wisconsin lake have identified early warning signs that an ecosystem is on the tipping point of a radical, rapid change.

Falling ash from Puyehue-Cordón Caulle volcano

The Chilean volcanic eruption on Saturday, June 4, 2011 reached six miles up into the sky and sent a plume of ash toward Argentina. Read more about falling ash.

Tropical forests and carbon storage in 1st-ever map

Researchers looked at three million measurements of treetop height, along with ground data, and calculated the carbon held in tropical forests.

A week of deadly and rare tornadoes in Massachusetts

Dramatic video of June 1, 2011 tornado in Springfield, MA, crossing a river. A total of two tornadoes struck Springfield, killing 4 and injuring 40.

There’s no such thing as a jellyfish

What's a jellyfish? The Monterey Bay Aquarium Research Institute created this wonderful video about jelly-like life forms that inhabit the ocean.