From Gerald Legg, Booth Museum of Natural History
Your article on metamorphosis (24 September, p 56) reminded me of a seminar I attended in the 1970s, on the reproduction of marine life forms.
A very large proportion of these organisms rely on the stable, oxygen-rich saline environment of the sea to nurture and disperse their eggs and sperm. What if things got mixed up – the “wrong” sperm finding the “wrong” egg? What would this lead to?
Brighton, UK
