Animal Index - Invertebrates

Animal Index - Invertebrates
Of the million or more animal species in the world, more than 98% are invertebrates. Invertebrates don't have an internal skeleton made of bone. Many invertebrates have a fluid-filled, hydrostatic skeleton, like the jelly fish or worm. Others have a hard outer shell, like insects and crustaceans. There are many types of invertebrates. The most common invertebrates include the protozoa, annelids, echinoderms, mollusks and arthropods. Arthropods include insects, crustaceans and arachnids.

Click on the picture or name of the animals below for more information.
About Animals:
Index of Animals

Vertebrate Animals

Web Links


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Science Main Index


Protozoa Annelids Mollusks Echinoderms


Crustaceans Arachnids Insects
Web Links about Invertebrates:
Ask the Curator of Harvard's Museum of Comparative Zoology, Department of Invertebrate Zoology, your question.

Find information about the Invertebrates at the Waikiki Aquarium






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