Man cuts open brown sack – what bursts out will shock you

YOU won't believe what shoots out of this bizarre brown object.

By Laura Mitchell

This viral video shows that sometimes even the ocean’s most fearsome predators need a helping hand in life.

The beginning of the clip shows a mysterious brown sack floating in a box of water.

A man then picks up the object gently and begins to open it slowly with a pair of scissors. He slices off one end and then places it back in the water.

SACK: What comes out of this sack is amazing

Seconds later a beautiful black and white baby shark bursts from the sack and darts around frantically in the tank.

After buying a bamboo shark inside its egg from a pet store, the owner was told to cut the animal free once it reached a certain size.

In this video he carefully snips through the collagen fibers that make up the egg’s “shell”, releasing the tiny shark to thrash around to its heart’s content.

SURPRISE: A black and white bamboo shark shoots out

Often referred to as mermaid’s purses, the eggs of bamboo sharks are soft and flat and look a little like a crab's shell.

They are normally hidden among seaweed on the ocean floor, but sometimes strong currents cause them to wash up on the shore.

When the unborn sharks get swept up people are encouraged to help deliver the unique fish, before realising them back into the ocean.

AMAZING NATURE: The small shark's egg sacks sometimes wash up on the shore

The small, mostly nocturnal, sharks grow up to one metre in size and can be found in countries such as Japan and Australia.

If you want to get up close and personal with the amazing creatures here are the five best places to swim with sharks in the world.