A new study shows that the hippopotamus (Hippopotamus amphibius), an iconic African megaherbivore for which little is known about social communication, uses vocal recognition to manage relationships between territorial groups. Hippos (Hippopotamus amphibius) at the Mpala Research Centre in Laikipia county, central Kenya, on August 26, 2016. Image credit: Sci-News.com / Mpala Research Centre. “We found that the vocalizations of a stranger individual...
