The 'angriest octopus' that beat up a geologist

A man has been whipped by what he describes as the "angriest octopus" while swimming on holiday at a Western Australian beach.

In a video that has gone viral, the octopus can be seen in shallow waters lashing out at geologist Lance Karlson.

This is the octopus in question – and the damage it caused.

Read more: Man beaten up by 'furious octopus' in Australia