That's pretty cool. I would have thought that confirming you've seen something that no-one else on the planet has would be a somewhat difficult task. I wonder if there's like a world-recognized central database where this morphology and acoustics data of all species are organized for easy comparison.

> These samples were taken as eDNA - a new, fancy technique in which gallons of the surrounding water is captured and filtered for bits of DNA which can then be cross-checked against the DNA of known species.

Also pretty cool. I didn't expect them to leave so many pieces of themselves in their wake for something like this to be possible.