Question

Determine whether the following species are extinct, endangered, or threatened.

The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant hunting:

The Amur leopard is now gone from most of its original habitat due to human activity. Only twenty to thirty Amur leopards remain in the wild:

Western Lowland gorilla populations have dropped sixty percent in the past twenty-five years due to poaching, habitat loss, and, mainly, disease. Their numbers are expected to keep dropping, and the species could soon disappear:

The Eastern gemfish population has declined due to commercial fishing. New protection efforts seem to be helping the population slowly recover:

The golden toad was forced from its breeding sites when erratic weather caused pools to dry up. No frogs have been found in over two decades:

Answer 1

- Tasmanian tiger (thylacine) — Extinct. The last known individual died in captivity in 1936 and the species is considered extinct.
- Amur leopard — Endangered (more precisely Critically Endangered). Only a very small number remain in the wild due to habitat loss and poaching.
- Western lowland gorilla — Endangered (more precisely Critically Endangered). Populations have fallen steeply (largely from disease, poaching, and habitat loss).
- Eastern gemfish — Threatened. Populations declined from commercial fishing but have shown signs of slow recovery where protections are in place.
- Golden toad — Extinct. Not seen since the late 1980s and declared extinct.