That time when a guy in Finland made a song about how sad it is that a local animal species is going extinct, the song became a big hit, and it directly led to interest in saving it growing big enough that the species has now recovered and is no longer nearly extinct, merely endangered
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The species is the Saimaa ringed seal (Saimaannorppa), and the song in question is Vanhojapoikia viiksekkäitä by Juha Vainio: https://www.youtube.com/watch?v=Zi99Bz_-_No
and what I said is recognized by local scientists as true: this song probably single-handedly saved the Saimaa ringed seal from extinction
