London: We may be a nation besotted with the likes of Macavity, Rumpleteazer and Jellicles, but Britain’s love affair with cats needs to be controlled and owners should consider limiting themselves to a single pet per home, according to a leading animal expert. Dr Sarah Ellis has risked the wrath of feline fans everywhere by warning that the growth in the number of multiple cat households has led to a “crisis situation” for the species causing unacceptable levels of territorial disputes and even resulting in psychological harm. Having tracked 100 cats from different areas for a new BBC2 series Cat Watch: the New Horizon Experiment, Dr Ellis said she was shocked at the problem caused by the density of some populations.–Independent