Scientists Found Human Remains That Rewrite the History of an Infamous Disease

The new information pushes the presence of the bacterium Treponema pallidum back at least 3,000 years from what was ...
Nature

What were the first animals? The fierce sponge–jelly battle that just won’t end

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...