From Ashley Gulen
I hesitated to write, but in the interests of science here goes. In “Lopsided love” (18 June, p 42) Menno Schilthuizen mentioned the anatomical oddity of the left testicle hanging lower in about 2 out of 3 men.
I had noticed this asymmetry about myself, and wondered why it occurred. I realised that when sitting, for example, there is not a lot of room down there, and the testicles are pushed together. Thanks to the asymmetry, they slide smoothly into a vertical arrangement. Had they been symmetrical, there might be a nasty squash. The asymmetry makes sitting more comfortable. Mystery solved?
Guildford, Surrey, UK
