Simple Summary We used to think of brains as symmetrical, functioning in the same way on
the left and right sides, but we now know that this is not so. From the small brains of insects …

Why do the left and right sides of the brain have different functions? Having a lateralized
brain, in which each hemisphere processes sensory inputs differently and carries out …

The ability to use quantitative information is thought to be adaptive in a wide range of
ecological contexts. For nearly a century, the numerical abilities of mammals and birds have …

Highlights•We compared male and female guppies' performance in two spatial tasks.•The
two sexes showed similar ability to navigate around an obstacle in a detour task.•Males …

Individual differences in cognitive abilities have been thoroughly investigated in humans
and to a lesser extent in other mammals. Despite the growing interest in studying cognition …

Humans interact with fishes in many contexts including aquaculture, scientific study and
companion animals. In all of these contexts, fish welfare can be compromised through …

It is widely acknowledged that the left and right hemispheres of human brains display both
anatomical and functional asymmetries. For more than a century, brain and behavioral …

Abstract 450 million years of evolution have given chondrichthyans (sharks, rays and allies)
ample time to adapt perfectly to their respective everyday life challenges and cognitive …

The medaka, Oryzias latipes, is rapidly growing in importance as a model in behavioural
research. However, our knowledge of its behaviour is still incomplete. In this study, we …

The ability to utilize numerical information can be adaptive in a number of ecological
contexts including foraging, mating, parental care, and anti-predator strategies. Numerical …