Bacteria swap genetic information as readily as people can share digital data — there are no cultural, political or systemic boundaries, according to a new study. Researchers say they have identified a massive gene network that facilitates the transfer of 10,000 unique genes among 2,235 bacterial genomes, across international borders and across species.
Scientists from the Scripps Research Institute have discovered that prions -- tiny infectious bits of protein that can cause deadly neurodegenerative disease -- are capable of evolution. While that might not seem groundbreaking, here's the thing: while prions evolve by Darwinian, naturally selective processes, they are completely devoid of DNA and RNA.
A lot of the climate change debate may focus on how to cut carbon dioxide emissions to prevent global temperature rise, but many nations are already struggling with the consequences of local climate change--rising sea levels, water shortages and agricultural problems. Now the European Union has promised over $10 billion over the next three years for a "fast start" fund to help the poorest nations adapt to climate change.