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According to the defenders of wildlife, the top three most endangered ecosystems in the u.s. include Javan Rhinos, and Amur Leopard, Sunda Island Tiger.

Vaquita. Vaquita is the smallest and most endangered marine mammal in the world. Listed as endangered by the IUCN in 1996, there were only 6-22 vaquitas left in 2018.

More than 90% of ecosystems of the U.S.'s endangered species live in Hawaii, California, Florida, Texas, and the Southwest Appalachian Mountains, and more than 95% of their range is on private land. I have.

More than 31,000 species are already considered endangered.

Learn more about ecosystems at

https://brainly.com/question/842527

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