A small tropical fish may possess a sophisticated type of self-awareness only ever seen in humans, scientists have said. Researchers have discovered that the bluestreak cleaner wrasse – which ...

I write about the world of biology. Native to Southeast Asia, a tiny freshwater fish packs a surprising punch with its loud calls. ... [+] Today, ichthyologists have uncovered the secret behind ...

A tiny, transparent fish makes a sound as loud as a pneumatic drill, scientists in Berlin have discovered. They were prompted to investigate after hearing mysterious clicking noises coming from ...