Vet James Haberfield, whose clinic The Unusual Pet Vets deals exclusively with unusual and exotic species, said a surge in the popularity of unusual and exotic pets was probably the result of people's desire for uniqueness.
"I think people are intrigued by the things that are considered different," he said.
"Many of the species we see are truly stunning and amazing to watch."
Dr Haberfield said some of the most unusual pets he had seen included frogs, rare and expensive macaws, pythons, geckos and echidnas.
He said many rabbit, guinea pig, rat, mice and ferret owners loved their pet's inquisitive, friendly, playful nature, while reptile owners were often fascinated by their animal's bright colours and varying personalities.
Vet Peter Ricci, who works alongside Dr Haberfield, said birds, guinea pigs, rats and ferrets were the most popular quirky pets.
Dr Haberfield said ferrets were mischievous and each had its own personality.
The best place to start looking for a ferret was through the WA Ferret and Ferreting Society.
A healthy ferret should have a gleaming coat, clear and bright eyes, pink and moist gums, clean teeth and well-formed faeces.
"Ferrets are escape artists and hence it is vital their cage and area they have access to is made to be escape-proof," he said.
Ferrets did not mix well with other animals and required regular health check-ups.
Dr Haberfield said lizards made wonderful pets.
There were hundreds of different species in Australia, including dragons, geckos, skinks, monitors and legless lizards - many of which could be kept in captivity.
However, each lizard species had specific requirements regarding food, UV light, humidity and water.
Bearded dragons and blue-tongued lizards were two of the best lizards to keep, especially when first starting out.
Dr Ricci said rats generally lived for two-to-three years and were inquisitive and intelligent animals, which, on the whole, were easy to care for.
They needed a clean cage with plenty of nesting material.
Rats loved building their own comfortable surroundings and would make good use of materials offered to them.