Sea cucumber

A Sea Cucumber (ナマコ, Namako) is a type of sea creature in the, introduced in.

While initially absent from, the Sea Cucumber was added in the 1.3.0 Free Summer Update.

In
When donating to the museum, Blathers will say the following:

"The sea cucumber, much like its relatives the sea urchin and sea star, has no heart nor brain. However, unlike its relatives, it has no shell nor spikes with which to protect itself either. So, how does a softy such as this stay safe in the open ocean? Brace yourself, I say... When threatened, sea cucumbers jettison their innards...out of their backsides! Hoo! Gross but true! The sticky, stringy stuff ensnares predators, allowing the cuke to make its escape and grow its insides back. One might say...the sea cucumber is a GUTSY creature, indeed. Hoo hoo, hee hee! Do forgive me!"