This document discusses several critically endangered species and the threats they face, including habitat loss, hunting, and human-wildlife conflict. Species mentioned include mountain gorillas, leatherback sea turtles, northern white rhinoceros, California condors, snow leopards, giant pandas, blue whales, brown spider monkeys, red wolves, and Chinese alligators. The conclusion states that the future of the earth depends on conservation efforts by all people. Works cited includes references used to find images and information about each endangered species.