The nation turned decisively green: within five years we had the Clean Air Act, the Clean Water Act, the endangered species Act.
Demographically, though, he has become an endangered species.
Which brings us to our second question: Why is the Romantic Comedy becoming such an endangered species?
"We were a party that on the covers of magazines around this country were called an endangered species," he said.
I wonder if we declared them an endangered species too soon?
In a new Republican administration, the EPA might well become an endangered species.
Over the past 15 years, Northeast Republicans have gone from dominant to endangered species.
Now the endangered species Act (which passed the House 355-4 in 1973) enshrines a national commitment to biodiversity.
The wolf: the ecology and behavior of an endangered species.
The endangered species Act of 1973 added federal protection in 1974.
A plant or animal species existing in such small numbers that it is in danger of becoming extinct, especially such a species placed in jeopardy as a result of human activity. One of the principal factors in the endangerment or extinction of a species is the destruction or pollution of its native habitat. Other factors include overhunting, intentional extermination, and the accidental or intentional introduction of alien species that outcompete the native species for environmental resources.