Movie 1

Example of boto prey capture. The prey hydrophone and an attached fish is lowered into the water before the fish is grabbed shortly after by a boto. The movie is filmed from a GoPro camera mounted close to the centre of the star array.

Amazon river dolphins (Inia geoffrensis) modify biosonar output level and directivity during prey interception in the wild

Michael Ladegaard, Frants Havmand Jensen, Kristian Beedholm, Vera Maria Ferreira da Silva, and Peter Teglberg Madsen

Journal of Experimental Biology 2017. 220:2654-2665; doi: 10.1242/jeb.159913