WHITEHORSE, YUKON — A few minutes’ walk from the bank of the aquamarine upper Yukon River in northwestern Canada, thousands of bones of ancient creatures rest in boxes and on shelves. Here in the lab of Yukon government paleontologists are the remains of saber-toothed cats, bears with boxy faces that stood 8 feet tall, woolly […]
A study of life and extinctions among woolly mammoths and other ice-age animals suggests that interconnected habitats can help Arctic mammal species survive environmental changes. The study appears online Nov. 2 in the Proceedings of the National Academy of Sciences. Short periods of warm climate in the midst of the last ice age triggered boom-and-bust cycles in the populations of large mammals in […]
