Great underwater carb migration:

Surely you know about the migration of red carbs or crabs on the ground. When they move from one place to another, the streets and houses are filled with these red crabs. All the traffic is stopped for a few days but there is another kind of migration of crabs.

There is a form that is going to say in this Article today, there are some crabs in the world that migrate under the sea which we call Great underwater carb migration, once a year some crabs look like spiders under the port of Phillip Bay in Australia together from bottom to top

  As they climbed up, they pressed one on top of the other to form a pyramid-like mound that a diver captured on camera for the first time.  The reason for such unity is to protect each other from predators.

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