7.5M views · 65K reactions | Do sharks play? In a new study, scientists observed sharks biting and nudging toys as well as swimming through hoops. In dogs or cats, experts would easily categorize these interactions as "play," but the lack of research into shark cognition and social behaviors makes understanding these findings more complicated. Learn more about the study and why researchers are divided: https://on.natgeo.com/44eC3w3 | National Geographic | Facebook