Meet One Of The Only Fish Ever Reported To Pass A Self-Awareness Test. Hint: It’s Smaller Than Your Finger

A finger-length fish has reignited a long-running debate about self-awareness, cognition and how much we’ve underestimated ...
IFLScience

Meet The Moonfish, The World's Only Warm-Blooded Fish That’s 5°C Hotter Than Its Environment

To get to the bottom of it, they looked at the fish’s anatomy and physiology and discovered something curious in their gills.