Ad lib redirects here. For other uses, see Ad lib (disambiguation). Ad libitum (/Ã¦dËlÉªbáµ»tÉm/) is Latin for at one's pleasure; it is often shortened to ad lib (as an adjective or adverb) or ad-lib (as a verb or noun).
Camels protect themselves from predators by regurgitating their stomach contents mixed with saliva in a projectile fashion. This practice is commonly referred to as spitting. According to the San Diego Zoo, when camels spit, it is meant to startle and distract potential predators.
Answers. 1  Camels have wide feet to support their weight on the sand. This is an evolutionary trait. The physics behind it goes that that larger the area (beneath the feet), the lower the pressure upon the sand. So, if you have an object exerting 10N of force through a cylinder of 1 m^2, you will have 10 Pa of pressure applied. If the cylinder had 1/2 of the area, it would be 20N. Now, there is an amount of pressure that the sand can support before shear collapsing (sinking). The camels evolved to have wider feet to reduce the pressure exerted on the sand.