Sunday, July 25, 2010

Beaver, Pen and Ink Sketch - Linda C. Miller

Pen and Ink Sketch
Linda C. Miller, July 2010

While walking on the trail very early in the morning, my husband and I noticed bubbles in the little creek.  The bubbles kept "popping" up!  As we watched for a few minutes, the mystery was solved.  Up popped the beaver's head.

Beavers are vegetarians and this beaver was eating the aquatic plants in the creek, creating quite a scare for the invertebrates! 

Fun fact about beavers......... Beavers can stay underwater for an extraordinarily long time.  At least 15 minutes at a time! 

How do they do it----their heart rate drops to half its usual rate, a third eyelid call a nictitating membrane covers the eyes; similar membranes close off the ears, nostrils and throat automatically; and ..... they are able to use 75 percent of the oxygen in their lungs whereas human lungs process only 15 percent.

To learn more, I highly recommend Warner Shedd's "Owls Aren't Wise and Bats Aren't Blind", a wonderful book that debunks many common myths about our native wildlife.  Also the wildlife illustrations by Trudy Nicholson are outstanding.  I found this wonderful book at the Williamsburg Library!

Linda C. Miller
Williamsburg, Virginia
Artist, Naturalist and Instructor

1 comment:

  1. Wonderful, Linda! Love the info and I agree with your recommendation of Warner Shedd's book! I love that you don't have to read the chapters in order, too!


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