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Invertebrates

Closeup of an Indian walking stick camouflaged in twigs and leaves. It's brown with a long, thin body and legs.
Deep Look
Season 7 / Ep 7
4 minutes 20 seconds
Grade Level: 7 - 12
Small translucent speckled animal nestled on pebbles. Caption: but the Hawaiian bobtail squid is a master of disguise.
Science Nation
Episode 141
2 minutes 33 seconds
Grade Level: 7 - 12
Closeup of a slug with arrows labeling its optical and sensory tentacles at the front, its mantle in the middle, and its keel towards the back.
1 minutes 30 seconds
Grade Level: 2 - 5