A new breed of 'super rodents' which are resistant to common types of poison could be a threat to the health of humans and other animals, experts have claimed. According to research, almost all mice and rats in the UK have evolved to become resistant to a common type of poison in the past 20 years.
Anticoagulant rodenticides are commonly found in poisons, powders, liquids and other forms of bait used to kill rats and mice - but some 95 per cent of house mice and 78 per cent of rats now have genes that allow them to tolerate these kinds of poisons, the Mirror reports.
Scientists who have spent two decades studying mice and rats have reportedly found the same gene in rodents all over the country, making them harder to kill. Pest expert Dr Alan Buckle said the worrying development could pose a threat to both animal and human health.