Wednesday, October 04, 2006
Mastodons lived in North America starting about 2 million years ago and thrived until 11,000 years ago - around the time humans arrived on the continent - when the last of the 7-ton (6.35-metric-ton) elephant-like creatures died off.
Scientists Bruce Rothschild and Richard Laub pieced together clues to the animals' widespread die-off by studying unearthed mastodon foot bones.
...Based on the finding, it's likely that virtually every late Ice Age mastodon in North America had tuberculosis, Laub says.
Continued at Mastodons Driven to Extinction by Tuberculosis, Fossils Suggest
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