This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain.
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See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher
Polar bears vector cartoon for your Christmas, New Year and wintertime greeting cards, invitations and web graphics. Download cute polar bear illustrations in Illustrator AI and PDF format, great design footage for your Arctic animal, North Pole and environment artworks.
A ball-and-stick model structure of non-polar amino acid proline (Pro, P). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape.