My brother cooked some mussels with white wine, a tiny piece of ham and mozzarella (which disintegrated into tiny, disgusting-looking debris) for supper on Saturday night. I was watching him plate them when I suddenly realized that the mussels were in different colours – some were orange and others were cream.
I asked my mum why this was so, and she guessed that different colours meant different sexes. Googled, and found out that she was quite right! As this page explains, in greater detail:
What is the difference between a male and female mussel?
The different sexes of mussels can be identified by their colour. The flesh of a sexually mature male is creamy white, while a female is a reddish apricot.
Anyway, I tried one of my brother’s mussels, and gave him only a 5/10 cos it was rather tasteless! :P