A popular little dog that doesn't require much exercise, the Chihuahua is the ultimate lap dog.
Notably, unlike any other fox, the fennec lives in groups of eight to ten.
In the 1970s, the Asian Leopard was discovered to be immune to feline leukemia.
The University Of California was researching childhood leukemia and working with cat breeder Jean Mill, they imported Asian leopards to achieve the said-to-be impossible feat of combining different chromosomes to create smaller leopards that could be handled for research.
Hairless-type dogs have long, round, whippy tails whereas the Chihuahua has a flattened, stiff, furry tail and the long claw-like feet of the early Chihuahua are not seen in any other breed.
There are plausible theories that place the breed’s ancient roots in Egypt or the Sudan, from which it migrated or was taken across the Bering straits, though the Mediterranean countries and thence to Malta.