A shrimp scrap drifted down the face of a mirror, and a small reef fish tracked it like it was watching a slow-motion experiment. The fish, a blue-streak cleaner wrasse, had carried the shrimp upward, ...

Add Yahoo as a preferred source to see more of our stories on Google. Cleaner wrasse quickly scraped off a mirror-only mark, then used shrimp scraps to probe mirror space, researchers report. (CREDIT: ...

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...

I always love it when scientific researchers provide solid empirical data on the cognitive and emotional lives of nonhuman animals (animals) that some take to be a "surprise" because in their ...

The predictability of the Betta Fish’s behavior sets up an excellent experimental baseline from which to learn more about this species. In the species’ native Thailand, enthusiasts selectively breed ...

Ivan Vinogradov does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...