Just as humans and other animals are often more dexterous with one hand or paw -- usually the right -- honeybees have individualized flight pattern preferences. Some prefer to go right, others feel more comfortable going left.

Left-handedness is relatively rare among humans. But according to the latest research, plenty of bees go left. The insects are more democratic in their directional preferences.

"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," Mandyam Srinivasan, professor at the University of Queensland, said in a news release.

Researchers assessed the directional preferences of bees by presenting foraging specimens with differently arranged obstacles. First, bees face two different sized gaps in a tunnel leading to a honey treat.

More the 80 percent of the time, bees chose the larger gap, presumably because it offered the safer route. But when presented with two equally sized gaps, bees revealed their left-right tendencies.

Some 55 percent of the bees showed no bias, but the remaining 45 percent preferred to go either left or right. Scientists confirmed that the biases were not random by measuring how long individual bees took to decide which of the differently sized gaps to pass through.

Bees presented with a larger gap on the side opposite their directional preference took longer to commit to the safer route.

"We believe these individual biases help to improve the flight efficiency of a swarm of bees through densely cluttered environments," Srinivasan said. "Flying insects constantly face the challenge of choosing efficient, safe and collision-free routes while navigating through dense foliage."

The findings -- detailed in the journal PLOS ONE -- could help researchers improve the designs and programming for swarms of drones.

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For years, scientists assumed that humans devote a larger share of their daily calories to their brains than other animals. Although the human brain makes up only 2 percent of body weight, it consumes more than 25 percent of our baseline energy budget. But a study published Oct. 31 in the Journal of Human Evolution comparing the relative brain costs of 22 species found that, when it comes ... read more

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