[ad_1] Multiple sclerosis, an autoimmune disease that affects 2.9 million people, presents a biological puzzle. Many researchers suspect that the disease is triggered by a virus, known as Epstein-Barr, which causes the immune system to attack the nerves and can leave patients struggling to walk or talk. But the virus can’t be the whole story,… Continue reading Ancient Skeletons Give Clues to Modern Medical Mysteries
Tag: Ancient
This Ancient Whale May Have Been the Heaviest Animal Ever
[ad_1] Paleontologists on Wednesday unveiled the fossilized bones of one of the strangest whales in history. The 39-million-year-old leviathan, called Perucetus, may have weighed about 200 tons, as much as a blue whale — by far the heaviest animal known, until now. While blue whales are sleek, fast-swimming divers, Perucetus was a very different beast.… Continue reading This Ancient Whale May Have Been the Heaviest Animal Ever