Commercial hunting of the species was ultimately banned in Non-native plants crowded the cyanea out of its habitat, and non-native animals such as pigs, rats, and slugs ate its fruit more quickly than it could reproduce.
Due in large part to logging and capture for the exotic pet trade, orangutans—restricted to the Southeast Asian islands of Borneo and Sumatra—number fewer than 60, per a study. Dangerous pesticides and chemicals, released into bald eagle habitats, thinned the shells of their eggs, killing their young.
The primary goal of the Endangered Species Act is to make species' populations healthy and vital so they can be delisted from the Endangered Species Act.
Cheetahs are also much more difficult to breed in captivity than other big cats, such as lions. Simply put, nature cannot support the pressure humanity is placing on the planet.
The Endangered Species Act has lists of protected plant and animal species both nationally and worldwide.