?The study, led by Prof Eric Verspoor, found four genetically, ecologically and visually distinctive species that have evolved in the loch over the last 10,000 years.


One of the species, a ?Profundal Benthivore", has not as yet been reported to occur in any other loch in the brown trout's native range.?


https://www.bbc.com/news/uk-scotland...tland-46411233