It might just look like a normal tooth to most of us, but to Dr. Alexandra J. Zachwieja, from the U of M Medical School in Duluth, it was a significant discovery that showed how adaptable our ancient ancestors were. A molar from a young female, it is only the third fossil found of the Denisovan species, and the first to be found in Laos, giving evidence that these early hominids could thrive in tropical climates. Read More >>