counting

Unmanned aerial vehicles allow researchers to collect huge volumes of biological data cheaply, easily, and at higher resolution than ever before.

The insects correctly ordered an absence of black dots as “less than” a group of black dots.

Like humans, baby birds visualize increasing numbers from left to right, a study suggests.

Despite a lack of vision, a blind cavefish can count. Sort of.

Researchers breed fruit flies that, after 40 generations of conditioning, have acquired the ability to react to numbers.