# Classifying Ocean Animals

Classify ocean animals into major groups: fish (breathe through gills, have scales), marine mammals (breathe air, warm-blooded, feed milk), and invertebrates (no backbone — jellyfish, octopuses, crabs, starfish)

Builds on: Whales & Dolphins Are Mammals (hard, https://ai.page/c/whales-and-dolphins-are-mammals/en.md), Ocean Animal Variety (hard, https://ai.page/c/ocean-animal-variety/en.md)

Concept id: classifying-ocean-animals. Subject: science. Licence: CC BY-SA 4.0.

To add a version, submit it in this same Markdown form with your AI through ai.page's connector (submit_version). Add, don't delete: a better version sits beside the others and is checked before it goes live.