Bees can be left or right-handed like humans, says new study
Bees can be left or right-handed like humans, says new study

Bees can be left or right-handed like humans, says new research

Scientists at The University of Queensland’s Queensland Brain Institute have discovered that bees can have a preference for left or right – influencing their decisions while they navigate obstacles in flight.

Professor Mandyam (Srini) Srinivasan said the study showed that honeybees displayed handedness that varied from individual to individual.

“Unlike humans, who are mostly right-handed, some bees display a strong left bias, others a strong right bias, and yet others a weak or zero bias,” Professor Srinivasan said.

The researchers studied the flying decisions made by foraging honeybees when they encountered a barrier that could be traversed by flying through one of two apertures.

Bees were able to discriminate the widths of oncoming gaps and choose the passage that was presumably safer and quicker to fly through.

“When the apertures were equally wide, both apertures were chosen with equal frequency and about 55 per cent of the bees displayed no side bias in their choices,” Professor Srinivasan said.

Half the remaining 45 per cent preferred the left gap and half preferred the right gap.

When the gaps were of different width, the bees preferred the wider opening, and that preference increased sharply in line with the difference in aperture width.

The researchers confirmed the existence of individual biases by measuring the flight times of biased bees, noting a bee took longer to make a decision if its intrinsic bias was toward the side with the narrower opening.

“We believe these individual biases help to improve the flight efficiency of a swarm of bees through densely cluttered environments,” Professor Srinivasan said.

“Flying insects constantly face the challenge of choosing efficient, safe and collision-free routes while navigating through dense foliage.

“This finding could potentially be used as strategy for steering a fleet of drone aircraft,” he said.

Agencies/Canadajournal




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