Eels

A post on Mastodon drew me to this article about eel reproduction, mainly because of its excellent title:

Sexual Eeling (History Today)

which gave a fascinating historical overview of the quest to understand eel reproduction, or even of their enormous annual migrations.

But what do we know about eel reproduction now? For that, look here:

The Utterly Engrossing Search for the Origin of Eels (Christina Couch, Smithsonian Magazine)

Apparently, there is still a tremendous amount we don't know about eels and how/where/when they reproduce!

This puts me in mind of recent coverage concerning how little we've seen of the seafloor:

Humans still haven't seen 99.999% of the deep seafloor (Boise State Public Radio)

Which is sharing/elaborating on this scientific article:

Bell, Katherine L. C., Kristen N. Johannes, Brian R. C. Kennedy, and Susan E. Poulton. “How Little We’ve Seen: A Visual Coverage Estimate of the Deep Seafloor.” Science Advances 11, no. 19 (May 7, 2025): eadp8602. https://doi.org/10.1126/sciadv.adp8602.