Long ago, people chewed on tree bark as a method of pain relief. Willow bark has a high amount of salicylic acid, an ingredient still used in aspirin today.
100 Mind-Blowing Bark Facts
Basenji dogs can’t bark. However, this does not mean that they are silent. The sound that they release is more of a warbling yodel. This specific breed of dog is the only dog that cannot bark.
People once believed that chewing on tree bark would keep your gums healthy. It was also used as a method of pain relief. The bark of a willow tree contains high traces of salicylic acid which is an active ingredient in aspirin today.
The ancient Greeks chewed gum like mastic. Mastic is a substance that comes from the bark of a tree. This bark was believed to be how the Greeks maintained oral health.
The oldest piece of chewing gum is more than 9,000 years old. The oldest chewing gum ever found was a lump of birch bark tar that dates back to the Stone Age.
The Basenji, an African wolf dog, does not bark in a normal way but may yodel or scream when excited!