Invertebrates

Insects are everywhere. No matter where you live on earth, there are insects that make their home in the air, … Read more

Arachnids are a class of invertebrate animals found all around the world. They have eight legs, and unlike insects, they … Read more

Some species of crab can grow to be very large, while others are only a few inches long. Crabs are … Read more

Crustaceans are a large, diverse group of arthropods that include crabs, lobsters, shrimp, and barnacles. Distinct characteristics of a crustacean … Read more

While people sometimes refer to spiders as insects, they’re actually arachnids, a class of animal that also includes scorpions and … Read more

The exoskeleton, jointed appendages, and segmented body of an arthropod make it one of the most easily recognizable groups of … Read more

Annelids are classified as segmented worms that belong to the invertebrate phylum of animals. There are over 20,000 species of … Read more

Echinoderms are a unique group of animals that includes starfish, sea urchins, and sea cucumbers. These creatures are often characterized … Read more

Mollusks are invertebrate animals with unique characteristics, whose closest relatives include snails and slugs. They have soft bodies with a … Read more