Man-made nanoparticles in water slow fish down

Scientists think the nanoparticles damage the fish's gills, causing oxygen deprivation in the internal organs including the brain.

Rainfall totals in Italy from November 6 to 13, 2012

NASA has released a map showing the heavy rainfall in northern Italy in November 2012, made by combining measurements from many satellites.

To smash or to spear? The mantis shrimp dilemma

Spring-loaded arms help mantis shrimp deliver lightning fast blows, but some still prefer to take it slow.

Trees are shedding leaves later than usual

Scientists have found that the end of the Northern Hemisphere growing season has shifted to later in the year.

Amazing weather videos in November 2012

Check out these amazing videos that were uploaded in November - a tornado in Portugal, hail in Australia, a waterspout, and scenes from Hurricane Sandy.

Why sea level is rising faster than predicted

Climate feedbacks not included in global climate models may explain why sea level is rising faster than 2007 IPCC predictions.

October 2012 cool in U.S., but fifth-warmest October globally

No surprise. In fact, if you're 27 years old or younger, you've never experienced a single month where global temperatures ranked below the average for that month.

Antarctic ozone hole shrinks to second smallest in 20 years

Satellite data show that 2012’s Antarctic ozone hole was the second smallest recorded over the past 20 years.

Italy recovering from large floods

Series of storm systems produced large flooding in parts of north and central Italy. At least four causalities have occurred due to the heavy rains.

What is the world’s leggiest creature?

It's a millipede with up to 750 legs, twice as many as any other known millipede species. The video in this post shows all these legs moving together.