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Cat owners will recognise the purr of pleasure from their pets when they are tickled behind the ears, but a new analysis comparing the domestic cat’s genome with that of its wild relatives suggests this may also have been key to taming the animals in the first place. The analysis has identified

September has arrived, so you all know what that means: the beginnings of huge bird flocks in autumn and winter! Just as humans spend more time congregating in pubs in autumn and winter, starlings also gather together in large numbers at these times. Every evening as the sun sets, small groups of