But fish may not be as stupid as they appear, as a study suggests they can recognise themselves in a mirror. However cleaner wrasse fish have shocked scientists by suggesting they may have the same capability despite their tiny brains. But fish may not be as stupid as they appear, as a study suggests they can recognise themselves in a mirror. To see if they could recognise their mirror image, scientists injected small amounts of brown dye into their throats and heads to look like a parasite. The fish only attempted to remove the mark after seeing it in a mirror.

Source: Daily Mail February 07, 2019 19:01 UTC