A detailed study of the genomes of 44 species of ruminants gives new insight into the evolution and success of these mammals.
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DNA, the hereditary material, may have appeared on Earth earlier than has been assumed hitherto. Chemists now show that a simple reaction pathway could have given rise to DNA subunits on the early Earth.
The study, which is among the first genomic studies on otters, found that both the sea otter and giant otter have lost a considerable number of genes related to the sense of smell — a faculty that is
New research shows that Greenland may be ice-free by the year 3000. This research uses new data on the landscape under the ice to make breakthroughs in modeling the island’s future. The findings show if greenhouse gas concentrations remain on their current path, the melting ice from Greenland alone could contribute as much as 24 feet to global sea level rise by the time it disappears.