Non Aquatic animals that can hold their breath longest underwater

 1.  Hippopotamus

                   Hippopotamus spend a lot of time in water but they can remain submerged in water only for 5 minutes at a time.

2.  Beaver

                   Beaver can hold its breath for 15 minutes while submerged.

3.  Polar bear

                     Polar bears can hold their breath for around 2 minutes while submerged.

4.  Elephants

                      Elephants can hold their breath for upto 2 hours.

5.  Rats

                       Rats ca hold their breath for 3 minutes under water.