The first human which was born on Earth.
Archaeopteryx - when discovered - was the missing link between the reptiles and birds. It was still unable of real flight and had teeth.
The science is the studies and surveys that discovered that people with straight teeth have better health, longer lives, sweeter breath, and more social success than people with crooked teeth have. The engineering is the techniques that were developed to straighten crooked teeth.
Most bugs do not have teeth. Instead, they have specialized mouthparts that are adapted for chewing, sucking, or piercing. Some bugs, such as beetles, have mandibles that function similarly to teeth for chewing and breaking down food.
In the 1800's, some fossil teeth belonging to ceratopsians and hadrosaurs were discovered. They were classified under the genus Trachodon. When it was realized that the teeth did not come from one type of animal, the genus Trachodon became dubious.
In 1676 Van Leeuwenhoek found bacteria while viewing scrapings from human teeth, including his own. He called the bacteria that he saw in his microscope "animalcules".
The unknown facts haven't binn discovered yet
the tooth brush was not invented until 1938 but early forms of the toothbrush have been in existence since 3000 BC
In 1924, Depéret and Savornin found a couple of Carcharodontosaurus teeth. They didn't realize that the teeth belonged to a new genus. Later, Stromer discovered teeth identical to the teeth Depéret and Savornin had found, but he also found it with more bones. Now he knew that it needed it own genus, and he named it Carcharodontosaurus.
It is unlikely to find shark teeth at Lake Michigan, as sharks are predominantly marine animals and the lake is freshwater. Shark teeth are typically found in coastal areas or ocean environments where sharks inhabit. However, fossilized shark teeth can occasionally be discovered in sedimentary layers along the Great Lakes, but they are rare and not commonly encountered.
Anton Van Leeuwenhoek discovered plaque on peoples teeth
milk teeth Deciduous teeth. Reborner teeth. Baby teeth. Temporary teeth. Primary teeth. In Asia: Fall teeth. In Europe: Milk teeth.
Antony Van Leeuwenhoek discovered bacteria by observing the plaque between his own teeth (as well as others) under a microsope and are known as animal cules which are protozoans