Sharks possess unlimited sets of teeth, continuously replacing lost ones throughout their lives.

While not all snakes have fangs, they all possess teeth, typically arranged in six rows. These teeth are curved backward, resembling the barbs on fishing hooks, which aids in capturing and holding prey.

The expression "long in the tooth" originated in reference to horses. As horses age, their gums recede, creating the appearance of elongated teeth. The phrase signifies old age, with longer teeth suggesting greater age.

In Louisiana, biting someone with false teeth constitutes aggravated assault, while using natural teeth is considered simple assault.

Each individual has a unique tongue print, similar to fingerprints.

Smiling engages 17 muscles, while frowning requires 43 muscles.

Human jaw muscles can exert around 200 pounds of force to bring the back teeth together for chewing.

Approximately one in every 2,000 babies is born with a tooth.

Throughout a lifetime, the average person produces around 25,000 quarts of saliva, enough to fill two swimming pools.

The hyoid bone, a V-shaped bone located at the base of the tongue, between the mandible and the voice box, is the only bone in the human body not connected to another. Its primary function is to support the tongue and its muscles.

The sound of a snore, reaching up to 69 decibels, can be almost as loud as a pneumatic drill.

Squirrels' teeth grow continuously, with their incisors potentially growing up to six inches annually. However, constant wear keeps their teeth short.

Cats possess 30 teeth, while dogs have 42.

In 1996, dental consumers in the United States purchased close to 3 million miles of dental floss.

Paul Revere, historically known for his midnight ride during the American Revolution, was also a practicing dentist.

Rodents, such as mice and rats, have teeth that grow continuously throughout their lives.

Reptiles and sharks continuously replace their teeth before they wear out.

Crocodiles undergo over forty cycles of tooth replacement throughout their lifetime.

Elephants' tusks are specialized incisors used for digging food, fighting, and lifting.

Turtles and tortoises lack teeth.

Aardvark teeth lack enamel coating and are continuously worn away and regrown. Adult aardvarks only have molars at the back of the jaw.

Opossums, along with woodchucks and raccoons, produce chemicals that render snake venom harmless, providing them protection against snakes.

Mosquitoes have 47 teeth.

The mouth of the Statue of Liberty measures three feet wide.

An angry gorilla may stick out its tongue.

On average, a person laughs about 15 times a day.

A sneeze exits the mouth at over 600 miles per hour.

An elephant's tooth can weigh over six pounds.

Some whales lack teeth and instead have rows of stiff hair-like structures to filter food from the ocean.

Snails possess thousands of tiny teeth arranged in rows.

Minnows have teeth located in their throat.

Rabbit teeth never stop growing and are kept worn down by gnawing on hard foods.

Lemon sharks grow a new set of teeth every two weeks, totaling over 24,000 new teeth annually.

The weight of teeth necessitates significant muscle for efficient operation, contributing to the evolution of mammal skulls.

Mammals are heterodonts, meaning their teeth differ in shape and function, unlike the more uniform teeth of fishes and reptiles.

Mammals evolved diverse teeth forms to perform various functions, including grinding, stabbing, scissoring, digging, chiseling, sieving, and lifting (as seen in elephant tusks).

Teeth are typically the hardest parts of mammals and are frequently fossilized, aiding in taxonomy and understanding the fossil record. Mammals have two sets of teeth: the first, known as "milk teeth," acquired soon after birth, and a larger set acquired as adults, filling out larger jawbones.

Unlike other toothed vertebrates, mammals typically have only two sets of teeth, with teeth wearing out over time, influenced by diet. This wear pattern, particularly evident in herbivores, allows biologists to age animals by examining their teeth.

Elephants possess the largest teeth, with tusks being modified incisors deeply embedded in the skull. The heaviest pair of tusks belonged to an African Elephant, weighing 465 pounds collectively. Prehistoric elephant species also had impressive tusks, with some reaching lengths of 16.5 feet.

Apart from elephants, walruses and hippopotamuses also possess notable tusks and canines, respectively. African Elephants also boast the largest molars, with lengths exceeding a foot and weights reaching 10 pounds.

Most placental mammals are happy with between 20 and 40, while most marsupials have 30 to 50.

As a general rule, animals that feed on insects have more teeth than either herbivores or the larger carnivores.

Several groups of mammals have decided to do without teeth altogether. The 10 species of Whales in the order Mysticeti, the 8 species of Pangolins family Manidae, and the 3 species of Anteaters in the family Myrmecophagidae and order Edentata have all given up on teeth completely and have none.

On land the mammal with the most teeth is the Giant Armadillo, which can have as many 100 teeth in its jaws.

In the oceans the Spinner Dolphin can have as many as 252 teeth in its long thin jaws.

There are more than 100 fish teeth in the ocean for every single animal tooth on land!

Most dolphins have 96 teeth and whales have more than 1,000.

Barracudas and sharks have several rows of teeth.

Sharks eat all day long, they never brush, they never floss, and they never get a cavity.

There has never been a single cavity found in the ocean (that we know of).

On land we find only two groups of animals that experience tooth decay: human beings (and their domestic pets) and bears. Bears eat gallons of honey at a time, which is why they get cavities.

In over 22 countries, humans consume more than 120 pounds of sugar per person per year.

Dogs and cats in the wild never get a cavity; but when you feed them human food, they can get cavities.

In some countries, like China, most people eat such small quantities of sugar that entire cities are cavity-free. In fact, guess which country has the most cavities per person? The United States of America.