The tongue has five elements of taste perception: salty, sour, bitter, sweet, savory. All five can be tasted on all parts of the tongue.
The human tongue has on average 3,000 to 10,000 taste buds.
The taste buds on our tongue cannot taste food until saliva has moistened it.
On average, women have shorter tongues than men.
The blue whale has the largest tongue of all animals -- a blue whale tongue weighs about 2.7 metric tons!
A dog’s tongue actually increases in size as the dog exercises due to greater blood flow, and moisture on the tongue works to cool the dog.
In America, it’s considered rude to stick out your tongue at someone. In Tibet, however, it’s considered a greeting.