What kind of crab is Mr. Krabs with a yellow crown on his head?

Reef tank hobbyists always keep a few sponges in their tanks as decoration

But in the ocean there is a crab

That may be more familiar with sponges than you are

And absolutely better at raising and caring for them than humans

That is - the sponge crab

Sponge crab Dromia erythropus

They can use sponges to disguise themselves

When a sponge crab takes a fancy to a sponge, it uproots the latter

Then secretes a glue-like mucus on its own back shell

Then places the whole lump of sponge on top like making a hamburger.

Trying to run? No way!

(I do not know why this reminds me of Krabby Patties)

The bewildered sponge thus settles on the crab shell

At the same time, in extreme situations

It serves as a food reserve for the sponge crab

In return, the sponge henceforth gets

A larger range of activity and more food

So most sponges on top of crab shells are very plump

Mr. Krabs generally takes very good care of them~

This counts as a pet kept by Mr. Krabs, right?

(Like this one - a combo of two chubby guys)

When it is time to change shells

Brother Crab will temporarily put Brother Sponge on the ground

After the new shell hardens

Then puts it back

Without the disguise, it is the best time to catch them

Just like this

Yep, a naked crab looks like this!

There are also very flashy pink claw tips

Beneath the sea surface you never know how many oddballs there are

This one clearly has different taste from the Mr. Krabs above

This is a social crab

This one clearly got something wrong!

(#`O') Hey! You grabbed the wrong guy!

No, you grabbed the wrong sponge!

This is obviously a button coral, okay!