Declaring a bird extinct: The median wait is 36 years after the last sighting

来源: https://birdshistory.com/how-long-to-declare-a-bird-extinct/ 热度: 4 points on HackerNews

来源: https://birdshistory.com/how-long-to-declare-a-bird-extinct/

热度: 4 points on HackerNews