A beaver has the ability to shut down two of their senses, smell and hearing.
A beaver’s nose has a special inner flap that seals out water when
the beaver is submerged. Adult beavers can
hold their breath under water for 15 minutes. Beaver ears also have inner flaps that seal out water when they are
swimming. They have
oversized auditory canals, which allow them to pick up sounds and
vibrations under water that may indicate danger.