#marine life

All articles tagged with "marine life"

These tiny fish have a clever strategy to hide in plain sight – thanks to their food

Golden sweeper fish steals its bioluminescence from prey

Researchers say the Pacific golden sweeper cannot make its own luciferase and instead acquires the light-producing protein from tiny crustaceans it eats.

Key Takeaways

Researchers say the fish lacks the luciferase gene needed to make its own light.
Whole-genome sequencing found no evidence of horizontal gene transfer.

DT Editorial Team·Jun 1, 2026·via refractor.io

Harvard-led study finds octopus mating arm can also sense where sperm should go

Researchers studying octopus mating found that the male hectocotylus is not just a reproductive appendage but also a sensory organ able to chemically detect the target site inside the female.

Key Takeaways

Researchers found the octopus hectocotylus is both a reproductive and sensory organ.
The arm can chemically detect the target site inside the female.

DT Editorial Team·Apr 2, 2026·via gizmodo.com