Box crab BURIES a female under the sea bed in a bizarre mating session

One night sand! Male box crab BURIES a female under the sea bed in a bizarre mating session filmed by a night-diver

  • The creatures’ odd romance was filmed in the waters off Dauin in the Philippines  
  • One of the orange-shelled crabs uses his pincers to shovel sand over her head  
  • Diver who filmed the couple suggested that the female could have been hiding 

This is the moment two giant box crabs have breathtaking sex when the male buries his female mate under the sea bed. 

Last November’s bizarre mating session in the waters off Dauin in the Philippines shows one of the orange-shelled creatures climb on top of his partner and then use his pincers to shovel sand over her head. 

And the fascinated diver who filmed the couple even suggested that the female could have been hiding. 

The female crab disappears from sight as she is completely consumed by sand and her male mate in the waters off Dauin in the Philippines

He said: ‘During a night dive, I saw this couple of giant box crabs. 

‘I started to record because they looked like they were mating and it’s always fun to see some crab. The female is going to hide in sand, with the male outside.’

The 43-second clip, which ends with Mrs Crab disappearing, begins by showing the back of what looks like a lone giant orange crab scuttling across a sea floor of black volcanic ash and bits of coral.

But as the diver swims past, a second crab is revealed tucked in front of the larger one, who is cradling her with his pincers.


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The bigger male creature then suddenly sinks down slightly into the sand, burying the back of his shell.

He then pushes the female’s head down and she also appears to use her pincers to heap sand on to her head.

She then completely vanishes from sight and Mr Crab puts his arms in front of him and sits still.  

While it is known that crabs can bury themselves very quickly to hide and avoid being eaten, it is not clear why the male decided to protect his partner here.

Giant box crabs typically live at depths of between 10m to 50m on patches of rocky or shelly terrains in subtropical and tropical climates.  

As the diver swims past, a second  giant box crab is revealed tucked in front of the larger one, who is cradling her with his pincers

The bigger male creature then suddenly sinks down slightly into the sand, burying the back of his shell

He then pushes the female’s head down and she also appears to use her pincers to heap sand on to her head

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