Baby hippo needs a little underwater nudge from mama. Baby hippos are born underwater at a weight between 25 and 45 kg lb) and an average length of around 127 cm in) and must swim to the surface to take their first breath.
LIFE magazine ran one of the late Flip Schulke's photographs of Muhammad Ali in 1961 "training" underwater in a Miami swimming pool. Ali swore that the underwater workouts made him the fastest heavyweight in the world.
Rajan is one of the few salt water swimming elephants on Earth. Initially trained to carry out brutal logging work in the Andaman Islands in the he was forced to swim with massive loads. Now retired, at 60 years old he is the last of the group to survive.