Page 12 - Wildlife of the World
P. 12
28 | NORTH AMERICA
▷ AT HOME
Snow dens protect young cubs from
the cold. The dens have one entrance
and often several chambers, and can
be up to 40 degrees warmer than
outside temperatures.
▷▷ STRONG SWIMMER
A polar bear’s broad, partially webbed
forepaws make it a superb swimmer,
capable of covering up to 60 miles
(100 km) at a stretch, at speeds
of 6 mph (10 km/h).
