Which animals dont have a hard skeleton?

Invertebrates are animals that do not have a hard skeleton. Some examples include:

Invertebrates:

- Insects: such as ants, bees, butterflies, and beetles.

- Arachnids: such as spiders, scorpions, and ticks.

- Crustaceans: such as shrimp, crabs, and lobsters.

- Mollusks: such as snails, clams, and octopuses.

- Annelids: such as earthworms and leeches.

- Platyhelminthes: such as flatworms and tapeworms.

- Nematodes: such as roundworms and hookworms.