Invertebrates are the most diverse and numerous group of animals on Earth. There are more than 140,000 invertebrates in the United States—a number that is growing as researchers identify more and more species. Of the invertebrates in the U.S., approximately 200 are on the endangered species list.
An invertebrate is a cold-blooded animal with no backbone. Invertebrates can live on land—like insects, spiders, and worms—or in water. Marine invertebrates include crustaceans (such as crabs and lobsters), mollusks (such as squids and clams), and coral.
Segmented invertebrates with six legs
|Black Carpenter Ant
||Common Eastern Bumble Bee
||Giant Darner Dragonfly
|Wood Ants||Yucca Moths|
Worms and Snails
|Earthworms||Kahuli Tree Snails|
Maryland aquarium spotlight, murals of iconic wildlife, teaching tomorrow's conservation leaders and moreRead More
A groundbreaking bipartisan bill aims to address the looming wildlife crisis before it's too late, while creating sorely needed jobs.Read More
Add one of our native plant collections to your garden to help save birds, bees, butterflies, and more. Now available for 20 states with free shipping!Shop Plants
Get quotes now or call (855) 786-0941Get Quotes Now
More than one-third of U.S. fish and wildlife species are at risk of extinction in the coming decades. We're on the ground in seven regions across the country, collaborating with 53 state and territory affiliates to reverse the crisis and ensure wildlife thrive.