
Invertebrate
Octopus
The shape-shifting genius of the sea
Read the guideThe guide features 22 species in the invertebrate class. Each profile answers the most-searched questions first.

Invertebrate
The shape-shifting genius of the sea
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Invertebrate
The ancient, brainless drifter of the seas
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Invertebrate
The large, hairy spider with a gentle reputation
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Invertebrate
The color-changing master of camouflage
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Invertebrate
The glossy black spider with the red hourglass
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Invertebrate
The five-armed drifter that regrows its limbs
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Invertebrate
The swift swimming crab of Atlantic estuaries
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Invertebrate
The reef brawler with the fastest punch in nature
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Invertebrate
The tiny reef-building animals of tropical seas
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Invertebrate
The ancient living fossil with blue blood
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Invertebrate
The big-eyed spider that pounces on its prey
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Invertebrate
The elusive deep-sea giant with enormous eyes
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Invertebrate
The living-fossil cephalopod in a spiral shell
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Invertebrate
The fast, venomous predator with many legs
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Invertebrate
The long-lived clawed crustacean of cold seas
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Invertebrate
The slow, many-legged recycler of the forest floor
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Invertebrate
The large, glowing arachnid with a stinging tail
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Invertebrate
The crustacean that wears borrowed shells
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Invertebrate
The slow, shell-carrying garden mollusk
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Invertebrate
The spiny ball that grazes the seabed
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Invertebrate
The soil engineer that enriches the earth
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Invertebrate
The reef-dwelling giant of the mollusks
Read the guideThe Global Animal Guide currently features 22 invertebrates with full, answer-first profiles covering diet, habitat, size, and conservation status.
Invertebrates are animals in the invertebrate class. Browse the full list below to explore each species in detail.