The irises of domestic cats鈥� eyes are ovoid, but those of big cats such as lions and leopards are round like human irises. Why is this and do the differences confer any advantage either way?
John Neimer, Weymouth, Dorset, UK
We pay 拢25 for every answer published in New 杏吧原创. To answer this question 鈥� or ask a new one 鈥� visit newscientist.com/lastword. Terms and conditions apply.
Advertisement
This article appeared in print under the headline 鈥淐ats鈥� eyes in sight鈥�