New deep-sea limpet species discovered on underwater log

Technology Nov 06, 2025

Scientists exploring near Johnston Atoll just found a new deep-sea limpet species, Pectinodonta nautilus, hanging out on a decaying log 2,400 meters underwater.
The log wasn't just driftwood—it was home to 79 limpets and supported a whole mini-community of deep-sea life.

Discovery boosts biodiversity in the deep sea

Pectinodonta nautilus has a tough shell and big teeth for scraping wood, making it perfectly adapted to its unusual home.
Genetic tests showed it's unlike any other known limpet in its family.
This discovery shows how even sunken logs can spark new species and boost biodiversity in the deep sea.