Dinosaur Extinction Due to Multiple Causes, Study Suggests

Grow­ing ev­i­dence, pa­le­on­tol­o­gists say, shows that the di­no­saurs and their con­tem­po­rar­ies were not wiped out by one me­te­or im­pact, as is com­mon­ly as­sumed.Rather, mul­ti­ple im­pacts, mas­sive vol­can­ism in In­dia and cli­mate changes con­s­pired to fin­ish off the great rep­tiles, ac­cor­d­ing to Ger­ta Kel­ler of Prince­ton Uni­ver­si­ty in Prince­ton, N.J., and col­leagues..........

World Science

Giant Extinct Camel Remains Discovered in Syria

The bones of a huge extinct camel have been discovered in Syria, a joint Swiss-Syrian team announced last week.
The previously unknown species lived about a hundred thousand years ago and was "as big as a giraffe or an elephant," the archaeologists say..........

National Geographic News

Mastodon Extinction Due, in Part, to Tuberculosis?

Tuberculosis was rampant in North American mastodons during the late Ice Age and may have led to their extinction, researchers say...........

National Geographic News