Peron's side-gilled sea slug

Amazing fact

Peron's side-gilled sea slug can release acidic substances from its body surface for defense.

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An illustration based on the real animal.

A little discovery to share.

Its color varies a lot from one animal to another, and it also changes as it grows from young to adult.

THE REAL WORLD

The real Peron's side-gilled sea slug

Facts about the real animal.

A sea slug in the side-gilled slug family, living from the Indian Ocean to the central Pacific.

Its color varies a lot from one animal to another, and it also changes as it grows from young to adult.

It is active at night and hides under stones during the day.

It is a carnivore that feeds on animals.

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

We check each fact against its source. The illustrations simplify how the real animal looks.

The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.

This page was translated from the original Japanese with the help of AI.