The army of giant crabs invades the ocean floor

Have you ever seen crab migration? Yep, you've probably seen. This time we're gonna show you something completely different.


A spectacular migration of crabs usually starts at the beginning of the wet season (October/November). However, behaviour of Japanese spider crabs deviates from the behaviour of other crab species. At the middle of June, giant crabs begin to shed their shells, then becoming vulnerable to predators.

This is how crab moulting looks:

Luckily, these creatures have found the way to keep themself safe and it does look impressive! Scientists call it "Safety in numbers".

Enjoy more with QuizzClub:

Does it look creepy? Have you ever witnessed giant crabs' migration? Please, share your experience in the comments below!

#Geography

Your opinion matters
40 Comments
Mohinder Kapur
Mohinder Kapur
No
1
Jun 19, 2016 5:51PM
Tim Knight
No
0
Jun 20, 2016 8:42PM
Jeanne Bostion Ritter
No. I've never seen this before. It's interesting.
0
Jun 20, 2016 8:52PM
Sonny Porter
Sonny Porter
I've seen Blue crabs sluff!That is when they come out of their shell and are soft!They become hard in a few hours as long as tide is running over them!If taken out of the water and the top shell moves when they breath they will die in about an hour unless put back in the water!If she'll doesn't move when they breath they will live approx 2 weeks in 30 degree weather and remain soft!
2
Jun 20, 2016 9:46PM
Daniel Halley
I had the crabs once. I prefer them steamed with a spicy mustard dip, not in my pants! lol
0
Jun 20, 2016 10:28PM
Jacob Amelian
Jacob Amelian
No never seen this but it's very interesting our planet is so amazing
0
Jun 20, 2016 10:33PM
Grady Green
Grady Green
I have never seen anything "migart"
0
Jun 20, 2016 10:37PM
George Patton
Big WHOOP! I was present at a mass unexplained, undersea sponge migration; all 18 inches of it!
0
Jun 20, 2016 11:04PM
Samson
Cool
0
Jun 20, 2016 11:10PM
Leopoldo Pangilinan
are this crabs edible??
0
Jun 21, 2016 12:25AM
Yolanda Solis
No, I've never seen this before. It's very interesting.
0
Jun 21, 2016 12:33AM
Bill Archer
Interesting.
0
Jun 21, 2016 3:06AM
Sandra L Gordon
Sandra L Gordon
I have never seen this.
0
Jun 21, 2016 4:00AM
Ernest Kurtock
Ernest Kurtock
Moulting time is the way to to go harvest then w/o the shells to mess with then! Yum Yum!
0
Jun 21, 2016 11:16AM
Spencer Young
Watch out Sponge Bob
0
Jun 21, 2016 5:07PM

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