11:13-21. On the back of the scroll, a name of G-d is written. The scroll is then rolled up and placed in the case, so that the first letter of the Name (the letter Shin) is visible (or, more commonly, the letter Shin is written on the outside of the case). The scroll must be handwritten in a special style of writing and must be placed in the case to fulfill the mitzvah.
Leopards roar, but it is a very different sound to the deep roar of a lion or the snarly roar of a tiger. It sounds very like a hacksaw cutting through wood-it's sometimes described as a 'hacksaw cough'. In addition, leopards also make various other sounds, for example, growls.
Sound signals carry over considerable distances and give information immediately. Songbirds and howler monkeys call to establish territories. Whales, frogs, and crickets sing to attract a mate. Vervet monkeys warn others of different enemies by using different sounds.