B2 濒危鸟类／植物／物种
animals or plants that may soon not exist because there are very few now alive
Monarch butterflies are now an endangered species idue to declining numbers.
Fencing is put up to protect the eggs of endangered sea turtles from humans.
The zoo specializes in breeding endangered animals.
Environmentalists claim the project would destroy marshland that is home to many endangered birds.
This area provides habitat for several rare or endangered fish species.
See also: endangered