Even more exotic than the Savannah is the striking Ashera, which is reportedly descended from a mix of African servals, Asian leopards, and domestic cats. These hybrid creatures are substantially larger than the typical house cat, standing at around 1.5m (4.9ft) and weighing up to 33 pounds (15kg).

Asheras' temperaments are reportedly comparable to that of the average household dog, making them a great pet choice for anyone with a bulging bank account and a penchant for the unusual.

These ultra-rare animals are born sterile and just a handful are lab-bred each year. As such, Ashera cats can fetch premium prices of up to $125,000 (£105.8k).

Feline in the mood for more pet inspiration? Take a look at the world's most expensive dog breeds.

The 20 most expensive cat breeds in the world