In a blow to the image of hydropower as a source of green energy, scientists have found damming of tropical rivers not only damage downstream ecosystems, but can indirectly dump more carbon dioxide into the air than the electricity they generate saves in fossil fuel emissions.

Geneticists accidentally engineer mice with especially short, long tails- Scientists stumbled upon the genetic pathway that controls tail developmental in mice

Study finds most of Earth's water is asteroidal in origin, but some, perhaps as much as 2%, came from the solar nebula

Scientists have found a 33-million-year-old whale fossil that had neither teeth nor baleen

Researchers have created an electricity-producing bionic mushroom by augmenting a white button mushroom from the grocery store with cyanobacteria and graphene

Martian organics arose on the planet, but not through biology

Claimed evidence for human activity in Madagascar 10,000 years ago does not stand up, researchers say.

Investigating how the octopus got its smarts

Causality disappears at the flick of a switch

Scientists decode opium poppy genome