Il numero di specie animali e vegetali in via di estinzione ha raggiunto un nuovo record negativo nel 2017. Lo ha reso noto mercoledì il WWF, pubblicando il suo bilancio annuale.
L'elenco delle specie minacciate redatta dall'Unione internazionale per la conservazione della natura (UICN) annovera 25'800 animali e vegetali, circa il 30% di tutte le specie esaminate, osserva il WWF. Nel 2016 il numero era più basso: 24'000.
Animali in pericolo di estinzione
Pangolini (piccoli mammiferi insettivori presenti in Africa e in Asia), koala e cavallucci marini sono tra gli animali più minacciati. Gli elefanti africani non stanno molto meglio, sottolinea il WWF.
Per quanto riguarda la Svizzera, impressiona il dato che riguarda gli insetti: "il 40% delle specie sono considerate in pericolo e il loro numero sta crescendo", spiega l'ONG.
ATS/M.Ang
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