Results:
Mammalogists who study the biology of mammals. Have created a special dental formula which can help us to identify the arrangement and numbering of the tooth for each mammal. Studying the composition of tooth’s scientist are able to predict the diet of each mammal whether it be herbivore, omnivore and carnivore. In our lab experiment we used Iu- Cu- Pu -Mu/ Il-Cl –Pl-Ml to symbolize incisors, canines, premolar, and molar. Incisors are found in the center of the front of the mouth. The subscripts symbolize u and l the upper and lower jaws. Canines are the sharpest teeth which resembles vampire teeth. Premolars used for grinding of food are found in the middle of each side of the mouth. Molars are posterior, wide and flat and are used…show more content… Coyotes and humans have the same amount of canines in the upper jaw as well as in the lower jaw. The deer does not have any incisors and canines. In contrast humans have 2 premolars less than coyotes in both upper and lower jaws but 1 less premolars in the upper and lower jaws of the deer. The deer in comparison to the coyote does not have any incisors and canines in upper jaw whereas the coyote has 3 incisors and 1 canine. In the lower jaw the deer has one less premolar than the coyote. The shapes of each skull varies, the Homo sapien are round and would be said to be the largest skull of the three. The smallest skull would have to be the Canis latrans. When examining it based on the pictures we took if you had to compare it to the Odocoileus virginianus we can see that the Odocoileus virginianus has a long shape skull, the mouth tends to stand out. We can say that the Odocoileus virginianus has the largest tooth when we look at the occlusal surface. Canis latrans have the complex topography on the occlusal surface. The Canis latrans have the longest jaw measurement of 10.272cm whereas the Homo sapiens have the shortest with…show more content… Homo sapiens have the least number of molars and premolars with only 5. Whereas the Odocoileus virginianus and Canis latrans have 6 premolars and molars. The average tooth length for an Odocoileus virginianus is 1.18 cm. The Canis latrans had an average tooth length of 1.71cm and the Homo sapiens had an average length of 1.12cm. We can establish a trend and say that when the jaw size is bigger there is a smaller average tooth length. Figure 1 Tooth Width of the upper jaw of Odocileus virginianus, Canis latrans, Homo sapiens
We can see in this figure the tooth width of both premolars and molars in all the species we examined in lab. In the 1st and 2nd premolars the Odocoileus virginianus had the largest length. In molar 2 cusp 1 the Odocoileus virginianus has the largest length. The Canis latrans have the smallest premolars in the first three measurements. Figure 2 Tooth Sharpness of the upper jaw of Odocileus virginianus, Canis latrans, Homo