Scientists measure dolphin 'happiness'

Animal welfare researchers measure how captive dolphins feel about their environment. source: https://ift.tt/2INO0Rm #Headlines by: Original Post: https://ift.tt/2INO0Rm https://ift.tt/2kwnCwY
source: https://droolindognews.blogspot.com/2018/05/scientists-measure-dolphin-happiness.html