Flipping heck... is this the proof most dolphins are right-handed?
DOLPHINS tend to be right-handed – well, right-flippered – scientists say.
Research on one group in the Bahamas found they favour their right flipper and preferentially use their right eye and echo-locating ‘lips’ on their right side while hunting prey.
This indicates a specialisation in the lefthemisphere of the aquatic mammal’s brain, the side that processes information from the right visual field, says a study in the Royal Society Open Science journal.
It was based on data collected from 2012 to 2018 by researchers from the Dolphin
Communication Project in Florida. They found a ‘significant’ right-side bias.
Bottlenose dolphins echo-locating prey on the sea bed usually turned to the left with their right side and right eye down before burying their snouts in the sand, the team reported.
Only one of the 28 studied did the opposite – in all four turns it was observed to make. The other 27 showed right-side bias in 705 out of 709 turns observed by the research team.