#TikTokTuesday Do you know how to tell the difference between a big cat and small cat? We will give you a hint - it has nothing to do with size, but instead is determined by specific sounds they can make. Big cats can roar and small cats can purr. The hyoid bone of big cats is flexible, allowing them to make a loud, roaring sound. In small cats however, their hyoid bone is stiff and allows them to make the purring sound on both an inhale and an exhale. Of the 36 cat species on Earth, 5 are consi