Ants show left bias when exploring new spaces, according to a study published in the journal "Current Biology". Researchers from the University of Edinburgh found that ants consistently turned left when faced with a choice of two unfamiliar paths. This bias was not observed when the ants were exploring familiar territory, suggesting that it is a specific strategy for navigating new environments.

The researchers believe that the left bias may be an evolutionary adaptation that helps ants to avoid getting lost. By consistently turning left, ants can create a mental map of their surroundings and keep track of where they have been. This strategy is particularly useful in complex environments, such as forests or underground burrows, where landmarks may be scarce.

The study also found that the left bias was more pronounced in younger ants than in older ants. This suggests that the bias may be a learned behavior, rather than an innate one. The researchers speculate that young ants may learn the left bias from older ants, or they may simply develop it through their own experiences.

The left bias in ants is a fascinating example of how animals use spatial strategies to navigate their environment. This bias may provide insights into the evolution of navigation and spatial cognition in other animals, including humans.