Tempers flare as male alligators in Florida bellow mating calls.
(02:48)After spending an entire winter under ice, a beaver emerges and makes a home.
(02:28)Toads emerge from the ground and mate in flooded desert pools.
(01:51)An exiled wild horse tries to join a new group and must fight to prove his power.
(02:22)Baby jellyfish pulse through the water and will soon grow almost five metres of stinging tentacles.
(01:25)The Peruvian coast is Sea Lion paradise and one of the most crowded shores on the planet.
(02:26)A hungry mother bear waits for the sea to freeze so she can hunt.
(03:10)A pregnant teenage shark finds a spot in the Bermuda Triangle to give birth.
(02:25)