Domestic cats and dogs may have to be vaccinated in the future against Covid-19 to protect people

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This is a quick note but one worth making nonetheless. I think I can predict that in the long term, perhaps in about 18 months to 2 years time, governments in various countries, perhaps predominantly in the West, will be thinking about vaccinating companion animals as a second phase protective measure against Covid-19.  This is because there is a concern amongst some scientists that animals may create a reservoir for mutant variants of the Covid-19 virus. As the virus is zoonotic it can theoretically and actually be transmitted from animals to people and this must apply also to companion animals. Danish mink farmer with white mink due to be euthanised. Photo per credit Perhaps because of the general panicked nature of governmental responses to the coronavirus pandemic, not enough work has been done on this aspect of the spread of the disease. In addition nobody wants to alarm anybody which may lead to companion animal abuse. In fact, in China, at the outset of the pandemic, there were

Big Cats Get More Sex

Yes, a slightly crude but also slightly eye catching title. And I must say, no surprises. In a study¹ of the "fighting ability, rank during courtship, and mating success of the male cat", the heavyweights had an advantage. In "agonistic encounters" over females in heat, heavier male cats will usually overcome lighter male cats. "Agonistic" means combative encounters or fights.

Accordingly heavier cats had greater success in mating and therefore the creation of offspring. This would seem to be a classic example of the survival of the fittest (Darwin's theory of evolution).

Cats fighting and watching - Photo by J i J y

However, when heavier males were within a feeding group other than their own they fared less well in arguments over a female. Lighter cats sometimes won. Perhaps this is because the females were less acquainted with the incoming males, were less comfortable with them and had a say in the matter.

Note: (1) Mating behaviors, courtship rank and mating success of male feral cat (Felis catus) Akihiro Yamane, Teruo Doi and Yuiti Ono.

Associated page: Cats Mating.

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