Spider trapped in amber as it makes a meal of wasp

Researchers have discovered a well-preserved spider attacking a wasp in a 100 million-year-old piece of amber - the first of its kind ever found.

Giant fleas sucked dinosaurs' blood

Creatures like fleas - but ten times bigger - plagued the dinosaurs with their sharp jaws 165 million years ago.

Earth's wobble led to CO2 release that ended last Ice Age

Rising levels of carbon dioxide have for the first time been definitively linked to the global warming that led to the last Ice Age.

Implications unclear as ocean microbe balance changes

As the oceans warm, the microbes and plankton that live in them are set to be affected drastically - but scientists say they have no idea whether the changes will fuel climate change or work to counter it.

Study: US biofuels policy a fail

The U.S. government has thrown billions of dollars in support behind the biofuels industry, in the form of mandates and loan guarantees (and, again, here), in the hopes of weaning the country off foreign oil and cutting greenhouse gas emissions.

New bacteria could help clean up oil spill

A new strain of bacteria has been found that could help clean up some of the nastiest pollutants in the massive Gulf oil spill.