But it does not agree with our idea of orthodox sexual reproduction, since many generations may pass without the appearance of males. The reproductive products at such times are purely feminine—that is, eggs which develop without having been fertilized by a male cell, the spermatozoan. We may distinguish this form of reproduction from sexual reproduction, in the restricted sense, or bisexual reproduction, as unisexual or parthenogenetic reproduction.
It was a dusky grey haze — a weirdling, impossible, unreal haze like no sky anyone anywhere had ever seen or will ever see: it was a sky made from grey mother of pearl and stale brackish water.
More smart ideas from the likeable combo. Their Partridgian misfits and Colin Hunts soon pall, but the oddball stuff is terrific: the chain of resentment set up by some dropped coins; the host who overinvites to a party; and Martin Clunes Knocky Door , a cartoon that's as stupidly funny as its title.
