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Evolution, Life Sciences, Science Education, Human Evolution, and Stuff

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My name is Greg Laden. You can find out about me here, contact me here, and for all the gory details, have a look at this...

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Carnivora:

The Evolution of Cats: Sabertooth vs. Regular

 Sabertooth Cat, Megantereon nihowanensisl There are two kinds of "true cats." Cat experts call one type feline or "modern" partly because they are the ones that did not go extinct. If you have a pet cat, it's a modern/feine cat. This also includes the...

Polar Bears and Global Warming

The pending federal decision about whether to protect the polar bear as a threatened species is as much about climate science as it is about climate change. The US Fish and Wildlife service is contemplating the listing of the obviusly endangered polar bear as a...

Polar Bears Under Threat ...

As usual. Along with seabirds, owing to decisions made by the US government. The US Government has auctioned leases to drill for oil and gas in the Chukchi Sea off Alaska, putting at risk internationally important concentrations of seabirds, and a number of threatened bird...

Very Large Parks are the Wave of the Future

Across Africa, and to some extent Asia, existing large parks and preserves are being combined into very large parks in order to serve several important functions. One is to make the parks so large that there will be interior areas that are impractical for most...

Nature News

Hunting Wolves; Killing Elephants...

The Physics of Tatiana

Tatiana was the captive Siberian Tiger who, on Christmas Day, leaped out of her cave to attack teenage boys who were taunting her. She killed one of them. Zookeepers are investigating how she did it, considering the possibility that the wall of her enclosure was...

Tatiana Update

Tatiana was the tiger that leaped from its enclosure in the San Francisco Zoo, killing one and wounding others. Details of the investigation have been released, and apparently, the tiger was taunted....

Cave Bears More Carnivorous Than Previously Thought

From a University of Bristol Press Release: "Rather than being gentle giants, new research reveals that Pleistocene cave bears, a species which became extinct 20,000 years ago, ate both plants and animals and competed for food with the other contemporary large carnivores of the...

Tatiana Is Telling us Something

TatianaThe killing of one visitor and maiming of two others by Tatiana, a Tiger, in the S.F. Zoo raises questions that go far beyond one cat and three victims. One might ask: Should there even be zoos?...

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