A Few Divers Ran Across An Undersea Event That Is Both Fascinating And Awful

Stunning Spider Crabs

Pink Tank Scuba was diving near Blairgowrie Pier in Port Phillip Bay, Victoria, Australia, when they saw something odd.

From a distance, it looked like debris or possibly coral…but no, it was over 1,000 spider crabs crawling over each other to make a huge pyramid on the ocean floor.

Nope, definitely not coral.

Nope, definitely not coral.

It’s a giant pile of NOPE.

It's a giant pile of NOPE.

This is fascinating, but it may convince you to stay on dry land.

At this time of year, spider crabs usually gather for a mass migration and molt.

However, seeing such a spider crab pyramid seems to be pretty unusual (even for regular divers in the area). According to Hirschfield (via Grind TV), “The behavior I observed was really just a lot of climbing and a few scuffles as crabs got in each other’s faces…A few of the crabs in the pyramid were also adorning themselves with sponges becoming decorator crabs, which is a camouflage mechanism.”

Not only that, but these pyramids don’t last very long.

So, these divers were just a lucky few who were able to witness such a large, skin-crawling event.

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