6 Ancient Fish That Have Both Gills And Lungs—And Survive Today In These Freshwater Habitats
Lungfish’ would have been a common sight in the Devonian period, about 400 million years ago. Remarkably, six species of this ...
Smithsonian Magazine on MSN11d
These Tiny Fish Will Assess Themselves in a Mirror Before Taking on a Foe
Bluestreak cleaner wrasse are small, territorial fish that aggressively fend off intruders. But when they have access to a ...
Science Daily11d
Mirror, mirror, in my tank, who's the biggest fish of all?
Researchers have demonstrated that bluestreak cleaner wrasse (Labroides dimidiatus) checked their body size in a mirror before choosing whether to attack fish that were slightly larger or smaller than ...
Ancient Fish Baffles Scientists
A 50-million-year-old fish is baffling scientists, who have no idea where it sits on the evolutionary tree. It doesn’t match ...
Live Science9d
Ancient relative of 'living fossil' fish reveals that geological activity supercharges evolution
The ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a ...
inceptivemind10d
Cleaner fish precisely realize their body size
According to an Osaka Metropolitan University-led research group, a bluestreak cleaner wrasse (Labroides dimidiatus) check ...