Bro, what even is a species?

I’ve been writing about various species for a while now, and this latest Attenborough is really throwing me for a loop. It’s a kind of small bird from the Amazon called a gnatcatcher. They’re a kind of small songbird related to wrens, and they feast on insects with small, sharp beaks—in between warbling out their songs, I imagine.

And it’s most likely a new species. But the researchers in charge of deciding weren’t all that sure. Because we don’t have enoug