And they are only found in the Northern Hemisphere.
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Beluga whales are
some of the few
whales in the world that inhabit cold polar regions and do not make any
use of any warmer waters at all.
The are only found around the north
pole, and not in Antarctica.
They follow the border of the ice as it
grows during the autumn and decreases during the spring again, moving
back closer to the poles.
They can also
survive under ice, where they
find air pockets in which to surface and breath.
They are ocean animals
but they do visit inlets, and they can occasionally follow fish into
the rivers - a few beluga remains have been found a fair distance from