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College of Food, Agricultural, and Environmental Sciences


Smart Stuff with Twig Walkingstick: Polar Bears Threatened? (for the Week of May 25, 2008)

May 27, 2008

Q. Dear Twig: We talked in class about polar bears. They just got listed as "threatened." What's it mean?

A. On May 14, the head guy of the U.S. Department of Interior, taking the advice of the head guy of the U.S. Fish and Wildlife Service, said this: that his department would now list the polar bear as a threatened species under the U.S. Endangered Species Act. "Threatened," the Act says, means a species could become endangered in the near future.

"Endangered" means a species stands even closer to extinction — very close, in fact.

And "extinction" is when a species blinks out, vanishes from Earth, and never can or will come back.

The listing means the government has to come up with a plan to protect the bears.

And that means the bears need protection from global climate change. Climate change is melting the bears' habitat — Arctic sea ice.

What sorts of ways do you think we can help them?


P.S. More on ice and polar bears:


Read the official May 14, 2008, press release from the U.S. Department of Interior, "Secretary Kempthorne Announces Decision to Protect Polar Bears Under Endangered Species Act," at

Read recent previous Twig columns on Arctic and Antarctic ice-cap melting at Scroll down to those dated Jan. 9 (whose URL is already mentioned), 16 and 20, 2008, and Dec. 20 and 30, 2007.

About This:

"Smart Stuff with Twig Walkingstick," published by The Ohio State University College of Food, Agricultural, and Environmental Sciences — specifically, by the Ohio Agricultural Research and Development Center (OARDC) and Ohio State University Extension, the research and outreach arms, respectively, of the College — is a weekly feature for children about science, nature, farming and the environment. It's written at, to and for a 4th-grade reading level.

For details, to ask Twig a question, and/or to receive the column free by mail or e-mail, contact Kurt Knebusch, CommTech, OSU/OARDC,1680 Madison Ave., Wooster, OH 44691,, (330) 263-3776.

Online at

Kurt Knebusch