A veteran explorer has captured the amazing moment a mother polar bear taught her cubs to swim.
Amos Nachoum, 65, came face to face with the apex predator whilst diving off the coast of north-east Canada in August.
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Amos attempted to take a similar set of pictures 10 years ago with a single, male polar bear - but unfortunately the bear perceived him as a threat and chased him to a depth of 75 feet.
Amos has previously taken up close underwater pictures of Nile crocodiles, anacondas, leopard seals, orca.
According to the World Wildlife Fund, Polar bears spend over 50% of their time hunting for food, but less than 2% of their hunts are successful. Their diet mainly consists of ringed and bearded seals because they need large amounts of fat to survive.