Endangered and Threatened Species

Many species of animals are disappearing from our planet. Extinct means that the entire species has died out and can never return. Endangered animals are those in immediate danger of becoming extinct. Threatened species are likely to become endangered in the future.

	Endangered¹		Threatened²		Total species	U.S. species with recovery plans
Group	U.S.	Foreign	U.S.	Foreign	Total species	U.S. species with recovery plans
Mammals	70	255	12	20	357	54
Birds	76	175	15	6	272	80
Reptiles	13	65	24	16	118	35
Amphibians	13	9	10	1	32	17
Fishes	74	11	64	1	150	98
Clams	62	2	8	0	72	69
Snails	25	1	11	0	37	30
Insects	47	4	10	0	61	33
Arachnids	12	0	0	0	12	6
Crustaceans	19	0	3	0	22	18
Animal subtotal	411	521	157	44	1,133	440
Flowering plants	570	1	143	0	714	607
Conifers and cycads	2	0	1	2	5	3
Ferns and allies	24	0	2	0	26	26
Lichens	2	0	0	0	2	2
Plant subtotal	598	1	148	2	749	638
Total	1,009	522	305	46	1,882	1,078

NOTE: As of June 13, 2007.

1. Endangered species are those in danger of extinction.

2. Threatened species are those likely to become an endangered species within the foreseeable future.

Source: U.S. Fish and Wildlife Service. Web: http://ecos.fws.gov/ .

Why Do Animals Become Endangered?

Ways of Life

Animal Group Terminology

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