untrained bumblebees – A study published in Science finds bumblebees can use movable objects to solve an artificial, complex puzzle for access to sugar—without any training—while some even “cheat” by skipping the tool entirely.
For a bumblebee, the route to a sugar reward is usually about instincts and foraging. But in a new set of experiments, the bees were pushed into a task that didn’t match anything they would do in the wild.
The setup was a small chamber with several pits in the floor and a sugary fake flower fixed on the ceiling. The bees couldn’t hover under the flower, and they couldn’t reach it from standing on the floor. To drink. they had to roll a movable Styrofoam ball into the correct pit. then climb onto it to access the food—while avoiding all the other pits.
The researchers deliberately made the chamber unlike the bees’ natural environment. They weren’t testing whether the insects could follow a simple routine. The goal was to see what happened when bees faced something “not natural” to them—an arrangement the bees had no reason to anticipate.
The findings, published in Science on Thursday, were striking. Bumblebees were divided into groups and given the basic conditions: a flower containing a sugary treat and a ball that could be moved. They weren’t taught how to use the ball as a tool. Even so, 16 of the 22 bees the researchers tested successfully rolled the ball into the right pit and got to drink.
That result adds weight to a long-running debate about tool use and problem-solving. Bumblebees have been observed using tools before. A 2016 study. for instance. found that bees could learn to pull a string to receive a reward. and that untrained bees could pick up the trick from peers. The new work. however. focuses on something different: bees demonstrating tool-based decision-making even when they’ve never been trained to do the specific task.
The researchers also built the experiment so that it depended on tool use. The chamber’s design prevented the bees from simply flying and drinking from the flower without using the ball.
Not every bee succeeded. But Olli Loukola. a behavioral ecologist at the University of Turku in Finland and a co-author of the study. stressed that failure doesn’t automatically mean the animals are incapable. Bees might simply lack motivation, or they might be too stressed or hungry to solve the puzzle. Some individuals that didn’t solve the test might have learned something smarter than the experiment captured—finding ways to work “smarter. not harder. ” he suggested.
Loukola also pushed back against the idea that only animals with “bigger brains” can do this kind of thing. He pointed out that bumblebees have around one million neurons, compared with the 86 billion or so in human brains. “The number of neurons is not correlating with cognitive abilities,” Loukola said. He offered a possible alternative: bigger bodies may require bigger brains. or animals needing more long-term memory might need larger neural systems. while bees are living in rapidly changing environments.
Then there was the moment that made the experiment’s puzzle more complicated than the success rate alone.
Akshaye Bhambore. the study’s lead author and a doctoral researcher at the University of Oulu in Finland. said the team observed “some individuals cheating.” Under the test’s design. the bees couldn’t fly and drink at the same time because the height was too low. meaning they were required to use the ball as a tool to reach the flower. But a small number figured out that they didn’t need to use the ball at all—choosing instead to hang off the ceiling and try to drink from the flower.
It’s a reminder that even when researchers think they’re controlling every path to the reward, animals will still search for loopholes. The experiment was built to measure flexibility in decision-making, Loukola said, and the cheating observation became a real-time example of that flexibility.
The team is already planning follow-up work. Bhambore said they want new experiments that can better monitor the bees’ physiological responses while they solve problems—work that could help reveal whether bumblebees experience anything akin to an “aha! moment.”
The next steps also include probing how much the bees understand about the physical world itself—whether they recognize differences between objects and learn that a specific item can function as a tool for a particular task, unlike nonfunctional alternatives.
A bee’s brain may be relatively primitive. but the message from these experiments is clear: tool use and complex problem-solving aren’t necessarily reserved for animals with the most elaborate neural machinery—and sometimes they can show up the moment an insect is faced with a challenge it was never trained to handle.
bumblebees tools problem-solving Science behavioral ecology University of Turku University of Oulu cognition physiology aha moment
Bees out here doing puzzles like it’s a phone game lol.
So they basically trained the bees by… not training them? Idk this feels like a loophole. Also “cheat” like skipping the tool?? That just sounds like they got lucky.
Wait, I thought bees couldn’t do tools without practice, but apparently 16 out of 22 figured it out anyway. But if the chamber was “not natural,” wouldn’t that mess up what they’re actually like in the wild? Feels like the experiment is kind of making a bee do parkour.
Every time I read about animal intelligence it ends up being like “they solved a tool puzzle” and I’m supposed to be amazed. But didn’t bees also do that thing where they learn from other bees? Like maybe the “untrained” ones just copied whatever the other group did off camera. Science will be like “no training” but there’s always some kind of advantage.