Aquatic mammals can recognise friends and family members without seeing or hearing themDolphins are able to recognise one another by the taste of their urine, a study has found.Researchers at the University of St Andrews have discovered that the mammals can recognise friends and family members without seeing or hearing them. Continue reading… Source – Full Article https://www.theguardian.com/environment/2022/may/19/dolphins-can-recognise-each-other-by-taste-of-their-urine-study-finds