Their front feet have long, curved claws that are used for digging their burrows and they have four large, very obvious chisel-shaped incisors for chewing. A fully grown adult groundhog’s head and body combined can be up to about 2 feet long. A groundhog’s lifespan is about 6 years....
Fun Science Facts about Bones Did you know the smallest bone in the body is the stirrup, deep inside the ear, which is about the size of a grain of rice? Humans have 206 bones! The human foot has 26 bones. The human hand ( including the wrist ) had 54 bones! The smallest, lightes...
The aye-aye is not only the largest nocturnal primate in the world but is also one of the most unique. It is in fact so strange in appearance, that it was thought to be a large species of squirrel when it was first discovered. The incisors of the aye-aye are ever-growing, much ...
As their diets changed, their teeth also changed in size while their upper second incisors morphed into tusks. Their necks became shorter to provide greater support to their enlarged heads. Which meant their trunks had to lengthen to make up for their necks. And the result? The largest ...
8. An elephants tusks are modified second incisors in the upper jaw, which replace their milk teeth between 6-12 months old. The visible, ivory part of the tusk is made of dentine with an outer layer of enamel and are essentially no different to other teeth. ...
The "interdental space" is an area in a horse's mouth, both on the upper and lower jaws, where there is not any teeth. This area is between the front teeth (the incisors) and the back teeth (the molars). When a horse is bridled, the interdental space is where the bit rests. On...
Beavers don't actually eat the bark, but they can chew through it with ease, using their impressive, self-sharpening incisors. The beavers four front teeth need to be so strong that the enamel on the face of the teeth is infused with iron. The iron rich enamel is resistant to the acidi...
With large canines, pointy incisors, and powerful molars and premolars,the completely omnivorous opossum is prepared to consume practically anything. The common possum is an intelligent, resourceful opportunist, and will eat fruits, vegetables, roots, tubers, worms, insects, small rodents, reptiles,...
(front side) teeth of the sheepshead are incisor-like, while the posterior (backside) molar teeth are set further back. Sharp and thick teeth appear when a sheepshead fish is just 4.5 mm long, and as soon as the fish becomes about 15 mm long, all incisors appear. At the same time,...
The teeth of Indian rhinoceroses can reach 5 inches in length, leaving a nasty mark if used to fight off other rhinos or predators. But the African species (the Black rhino and the White rhino) don’t have these long incisors and do fight with their horns. [20 Extinct Animals We've ...