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May 10, 2024 · The IUCN Red List of Threatened Species recognizes several categories of species status: Extinct (EX), a designation applied to species in which the last individual has died or where systematic and time-appropriate surveys have been unable to log even a single individual.
May 13, 2024 · The biodiversity crisis—which has left some one million plant and animal species at risk of extinction —is a leading driver of disease spread, the researchers found. “It could mean that by ...
May 13, 2024 · Some 157,000 species have been systematically evaluated by scientists to determine whether they are threatened with extinction; just more than 44,000 have qualified for the IUCN’s three most ...
2 days ago · Extinction is likeliest for rare species coming into contact with more abundant ones; interbreeding can swamp the rarer gene pool and create hybrids, depleting the purebred gene pool (for example, the endangered wild water buffalo is most threatened with extinction by genetic pollution from the abundant domestic water buffalo).
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5 days ago · The US Endangered Species Act (ESA) is our nation’s most effective law to protect at-risk species from extinction, with a stellar success rate: 99% of species listed on it have avoided extinction.
May 1, 2024 · Under the ESA, species may be listed as endangered or threatened. Endangered means “any species which is in danger of extinction throughout all or a significant portion of its range”. Threatened means “any species which is likely to become endangered within the foreseeable future”.
