How graphene oxide kills bacteria while sparing human cells

Experiments by University of Leeds researchers, published in Earth's Future, have shown that thawing of permafrost makes it between 25 and 100 times more permeable, allowing more climate change forcing gases to escape.

From color-changing skin to jet-propelled motion, squid and cuttlefish have long fascinated scientists. To understand the origins of their unique characteristics, many attempts have been made to define their evolutionary history. However, the limited fossil record and incomplete genomic information have made it impossible to confidently order the evolution of these enigmatic creatures, until now.

The UN Convention on the Conservation of Migratory Species of Wild Animals (CMS) on Sunday approved the listing of 40 new species for international protection, including the snowy owl featured in the Harry Potter saga.