Science1973-presentUnited Stateshigh confidence

More than 99% of species listed under the U.S. Endangered Species Act have avoided extinction due to the law's protections.

Notes on verification

Confirmed by peer-reviewed study (PeerJ/PMC), Center for Biological Diversity, Defenders of Wildlife, and U.S. Department of the Interior. Minor variation in exact figure (98% vs 99%) across sources but core claim well-supported. [tier=gold indep_score=0.925 clusters=4 claim_tier=notable]

Sources