Squirrels that strongly favour their left or right side are less good at learning, new research suggests.
Just as humans are usually left- or right-handed, many animals favour one side of their body for certain tasks.
The strength of this preference varies, with some individuals happy to use either side, while others strongly favour one side (known as being strongly “lateralised”).
The University of Exeter study found that grey squirrels which strongly favoured a side did less well on a learning task. They had to learn to use a paw, rather than their mouth, to get nuts. MORE