Rats 'could grow bigger than sheep'

Updated
Close up of holy rat in Karni Mata temple.
Close up of holy rat in Karni Mata temple.

%VIRTUAL-SkimlinksPromo%Rats could grow to the size of sheep or even bigger as they evolve to fill vacant ecological niches, it is claimed.

The terrifying scenario could become a reality as super-adaptable rats take advantage of larger mammals becoming extinct, an expert predicts.

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