That seems like a lot of thinking for a bear...

When polar bears hunt, they crouch down by a hole in
the ice and wait for a seal to pop up. They keep one paw over their nose so that
they blend in, because they've got those black noses. They'd blend in perfectly
if not for the nose. So the question is, how do they know their noses are black?
From looking at other polar bears? Do they see their reflections in the water
and think, "I'd be invisible if not for that." That seems like a lot of thinking
for a bear.

-Mark Whitacre, "The Informant!"