© GettyResistant: Rats are becoming immune to poison.
Mutant 'super rats' which cannot be killed by regular poisons are spreading across Britain, experts are warning.
The creatures, which look like normal rodents but eat toxic pellets 'like feed', have been discovered in Kent, the west country and now in Sussex.
The British Pest Control Association's Richard Moseley told Metro: 'Normal rats are being killed off by poison, so these resistant species are taking their place - it's only natural that their numbers are expanding.
'But they're being found further afield than previously anticipated.
'They eat poison like feed; you might as well be leaving out grain for them'.
There are an estimated 10.5million rats in Britain and they breed rapidly.
The gestation period is just 21 days and a female can have up to 14 pups at a time. Some breeding pairs can have 800 young in just two years.
Poison-resistant rats have been around for 50 years but researchers warn they are spreading rapidly. Mutants have been found in Sussex for the first time by researchers from the University of Huddersfield.
Comment: In other words, they have no clue, yet they pronounce it to be 'algae' so matter-of-factly!
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