1. Polar Bears in the Wild Efforts to Protect This Endangered Species Summer 2010 Workshop in Biology and Multimedia for High School Teachers

2. Polar Bears Endangered! Biodiversity Habitat Feeding Behavior Distribution Size / Weight Evolution Denning Reproduction Discussion http://upload.wikimedia.org/wikipedia/commons/2/20/Ursus_maritimus_us_fish.jpg Harvard University Life Sciences –HHMI Outreach Summer 2010 Workshop for Biology Teachers

3. Habitat is Shrinking http://upload.wikimedia.org/wikipedia/commons/8/88/Polar-bear.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

4. Food is Difficult to Find http://alaska.fws.gov/fisheries/mmm/polarbear/images/pbe arlg.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

5. Ringed SealBearded Seal http://www.arcodiv.org/Mammals/images/Ringed%20Seal-Steve%20Amstrup_400x300.jpg http://commons.wikimedia.org/wiki/File:Bearded_Seal.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

6. Ice Flow is Shrinking http://gallery.usgs.gov/images/12_11_2009/chx3BnmAYU_12_11_2009/large/Surviving_in_the_Arctic --Jessica_Robertson--Jessica_Robertson.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers http://upload.wikimedia.org/wikipedia/commons/8/8c/Ursus_maritimus_2_1996-07-23.jpg

7. Global Warming Impacts Ice flow cover and Migration http://uscites.gov/sites/default/files/polar%20bear%20on%20ice.jpg http://uscites.gov/image/polar-bear-0 Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

8. Importance of Pack Ice: Denning Bears spend most of their time on pack ice year around. They come ashore mainly when ice melts. Birthing is primarily out on the ice; when on land, time is short and return to the ice is rather quick. http://upload.wikimedia.org/wikipedia/commons/4/4f/Ursus_maritimus_Steve_Amstrup.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

9. Pack Ice Pack ice changes with seasons. Polar bears must migrate with the flows to survive. Food availability also varies with seasons. http://www.nasa.gov/centers/goddard/images/content/157173main_mm6_320px.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

10. Seasonal Changes in Ice Pack Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers http://en.wikipedia.org/wiki/File:IBCAO_betamap.jpg

11. Bear Territories Are Large http://commons.wikimedia.org/wiki/File:Polar_bears_near_north_pole.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

12. Bears are often sedated to “tag” them. Tagging is used to keep an accurate count. Bears are not harmed. http://upload.wikimedia.org/wikipedia/commons/0/0d/Noaa-polar34.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

13. http://upload.wikimedia.org/wikipedia/commons/c/cd/Polar.bear.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers