* Fish: These aquatic vertebrates breathe through gills and have fins.
* Amphibians: These vertebrates live both on land and in water, and breathe through their skin and lungs. Examples include frogs, toads, salamanders, and newts.
* Reptiles: These vertebrates have scales and lay eggs. Examples include snakes, lizards, turtles, and crocodiles.
* Birds: These warm-blooded vertebrates have feathers and wings.
* Insects: These invertebrates have a hard exoskeleton and six legs.
* Spiders: These invertebrates have eight legs and spin webs.
* Worms: These invertebrates have long, soft bodies.
* Mollusks: These invertebrates have soft bodies and often a hard shell. Examples include snails, clams, and octopuses.
* Echinoderms: These invertebrates have radial symmetry and a spiny skin. Examples include starfish, sea urchins, and sea cucumbers.
This is just a small sampling of the incredible diversity of life on Earth!