A giant lizard measuring nearly 4ft was spotted roaming in a park in south London.
The Blue tegu, measuring 46 inches from nose to tail, was found abandoned in Morden Hall Park.
The male reptile, thought to be between three and five years old, was chipped, and registered to a French company.
Tegus are an omnivorous species which live in tropical rain forests and deserts of east and central South America and can run at high speed.
If threatened they can whip their tails to swipe at aggressors and can even charge and inflict a painful bite. They often use this method in territorial defence, with the mouth open and front legs held wide to look more threatening.
Adult males are much larger than the females and can grow to lengths of nearly five feet.
The Blue Cross Animal Charity generally treats cats, dogs, small animals such as rabbits and guinea pigs at their animal hospitals.
When other species and wildlife are brought in then the team will provide emergency care if needed but will then contact local organisations with more specialist expertise to take on the animal.
Luckily the tegu found a home with Harry Craft, a reptile expert who was recommended to Blue Cross by the exotics team at the Royal Veterinary College.
Blue Cross advise people against getting exotic pets and have reissued their call on the Government to review exotic pet regulations.
A report carried out by the pet charity in 2016 found tens of thousands of exotic animals easily available online for sale.