A bizarre and unexpected moment at the beach has caught the attention of social media users after an octopus was seen firmly attached to a man’s back while he was in the water.

In the footage, the octopus can be seen spreading its tentacles across the man’s back, using its powerful suckers to hold tightly to his skin. The man appears to be struggling to remove the animal, turning the unusual encounter into a dramatic scene.

While the sight may look frightening, most octopuses are not considered dangerous to humans. Their suckers can create a surprisingly strong grip, particularly when the animal feels threatened or is trying to hold onto a surface.

However, there are some exceptions. Certain species of octopus are highly venomous, with the blue-ringed octopus being the most famous example. Although small in size, its venom contains tetrodotoxin, a powerful neurotoxin that can cause serious symptoms if a person is bitten.

A bite from a highly venomous octopus can lead to numbness around the mouth and face, weakness, difficulty speaking, paralysis and potentially severe breathing problems. In extreme cases, the venom can be fatal without immediate medical assistance.

Importantly, simply having an octopus attached to the skin does not mean that a person has been poisoned. Venomous exposure generally occurs through a bite, rather than simply through the animal’s suckers touching the skin.

It is impossible to determine the exact species of the octopus from this image alone, and there is no clear evidence that the man was bitten or poisoned. Still, the footage serves as a reminder that wild marine animals should be treated with caution and given plenty of space.