Pleistocene

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Tag archives for Pleistocene

The skeleton of the Hundsheim rhinoceros, Stephanorhinus hundsheimensis. From Kahlke and Kaiser, 2010. In any given environment, it might be expected that a generalized or unspecialized species might be less prone to extinction than one which depends upon a narrow temperature range, a peculiar kind of food, or other aspect of natural history which is…

The nearly complete skeleton of a Steller’s sea cow (Hydrodamalis gigas) – it is missing bones from the wrist and hand. From Woodward, 1885. It did not take long for the last remaining population of Steller’s sea cow to be driven into extinction. Discovered by the German naturalist Georg Steller around the Bering Sea’s Commander…

A golden-mantled ground squirrel (Spermophilus lateralis), photographed in Bryce Canyon National Park, Utah. Though abundant at the Samwell Cave Popcorn Dome, California site during the Late Pleistocene, its numbers in the area decline at the beginning of the present Holocene epoch. “One of the penalties of an ecological education”, the naturalist Aldo Leopold once wrote,…

Photo of the Day #882: Elk-Moose

The skeleton of an elk-moose (Cervalces scotti), photographed at the New Jersey State Museum.

A muskox (Ovibos moschatus), photographed in Alaska. From Flickr user drurydrama. Of all the mass extinctions that have occurred during earth’s history, among the most hotly debated is the one which wiped out mammoths, saber-toothed cats, giant ground sloths, and the other peculiar members of the Pleistocene megafauna around 12,000 years ago. It was not…