SOURCE: ABC (Australian)

DATE: April 9, 2019

SNIP: Vision of walruses tumbling down steep cliffs in northern Russia has shocked viewers of David Attenborough’s latest documentary project, Our Planet.

Attenborough explained walruses usually gathered on floating platforms of sea ice to rest during and after feeding.

But he said a lack of this ice had forced as many as 100,000 of the large sea mammals to cram together on the shore to rest.

Some climbed the cliffs to escape the crowd, facing a perilous journey back to the water when it came time to feed again.

Footage aired on the program showed several walruses tumbling down the rocky cliffs, with some having an 80-metre drop.

Warning: graphic footage