Endangered Species Research

Some species of animals and plants are in danger of disappearing forever. Scientists use three terms — extinct, endangered, and threatened — to describe how close a species is to being lost. Understanding these terms helps us protect wildlife before it is too late.

Conservation Status Levels

• Extinct: a species that no longer exists anywhere on Earth (e.g. dodo bird, woolly mammoth, passenger pigeon).
• Endangered: a species at high risk of becoming extinct if threats continue (e.g. mountain gorilla, Amur leopard, blue whale).
• Threatened: a species likely to become endangered if conditions do not improve (e.g. polar bear, African elephant, giant panda).

Common Threats to Species

• Habitat loss — forests, wetlands, and grasslands are cleared for farming and cities.
• Poaching — illegal hunting or capturing of animals for trade.
• Climate change — rising temperatures alter habitats and food sources.
• Pollution — chemicals and plastics harm water, soil, and air that animals depend on.
• Invasive species — non-native animals or plants outcompete native species for resources.

Protection Methods

• National parks and nature reserves — protected areas where wildlife can live safely.
• Anti-poaching laws — legal penalties that deter illegal hunting and trade.
• Breeding programs — zoos and sanctuaries breed endangered animals to increase populations.
• International treaties — agreements between countries to ban cross-border wildlife trade (e.g. CITES).