He just stopped mowing his lawn, and after a few years, he had some grad students come, and they did sort of a bio-blitz of his backyard, and they found 375 plant species, including two endangered species.
Ele deixou de cortar a relva. Poucos anos depois vieram alguns alunos licenciados, fizeram uma série de "bio-blitz" no quintal dele, e encontraram 375 espécies de plantas, incluindo duas em risco de extinção.