成人快手

Fossilised remains of 1.77 million-year-old early humans found at Dmanisi, Georgia, are the earliest human found outside Africa. The first whole genome of a parasitic nematode to be mapped is that of the worm causing causing elephantaisis. How the Caribbean island of Bonaire aims to become the first carbon-neutral island in the world, meeting all its energy needs from alternative sources. Nasa's Mars reconnaissance orbiter using HiRISE imaging has sent back pictures of the surface but hasn't found the planet's hoped-for ancient oceans. Plus, the value of the grandmother effect in evolution.