One of the author's many pets, a French bulldog named Crème Brûlée, underwent surgery after sustaining an infection ...

Nocturnal animals tend to have proportionally bigger eyes than humans do ... A slit pupil, with two sides that can close like a sliding door, is far better at this task, which is why so many ...

Seeing through one eye or many, in technicolour or black and white, few animals experience the world as we do. By analysing the properties of animals' visual systems, we can model what the world would ...