Some Savannahs are reported to be very social and friendly with new people and other cats and dogs, while others may run and hide or revert to hissing and growling when seeing a stranger. Exposure to other people and pets is most likely the key factor in sociability as Savannah kittens grow up. Breeders report that roughly 50% of first generation savannah kittens exhibit fear and anxious behaviors when initially placed in their new home. These behaviors if not corrected at an early age carry through to adulthood.