Re: QUIZZY-WIZZY Wednesday 8th September
Great! Well done. Ear mites it is! Nasty things. Now for some peculiar facts about them ....
THE BIZARRE EAR MITE LIFE CYCLE
The mite lives on the surface of the ear canal skin, though sometimes migrates out onto the face and head of its host. Eggs are laid and hatch after 4 days of incubation. The larva hatches from the egg, feeds on ear wax and skin oils for about a week and then moults into a “protonymph,” which in turn moults into a “deutonymph.” The deutonymph mates with the adult male. What seems especially bizarre to us mammals is the fact that the deutonymph has not yet developed a gender at the time it mates with the adult male.
After mating, the deutonymph moults into either an adult male or an adult female. If she becomes a female, she will be gravid with eggs as a result of the mating. If he develops into a male, there are no consequences to the mating and he is ready to mate with deutonymphs of his own choosing. The adult mite lives approximately two months happily eating ear wax and skin oils. The life cycle (the time it takes for an egg to develop into an adult mite ready for parenthood) requires 3 weeks.
Most ear mite cases are found in cats. Dogs can be infected as well but, since dogs more commonly get ear infections of other types, ear infections in dogs rarely involve mites.
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