HumansThe microbial gunk that hardens on teeth is revealing our deep past Plaque fossilises while we are still alive. Now, dental calculus is giving up the secrets of our ancient ancestors, from what they ate to how they interacted and evolved Features
LifeTwo groups of whales evolved massive heads for different reasons Bowhead and right whales are among the biggest animals alive today, but a new look at how they evolved suggests that the two groups ballooned in size independently of each other, and probably for different reasons 51¶¯Âþ