The Committee on the Status of Endangered Species, a federal advisory group, has created a list of 340 animals and plants that are in some jeopardy. Here are the categories the committee uses: Extinct  The species no longer exists in Canada.
The front teeth are called incisors, You have four incisors on the top jaw and bottom jaw. the central incisors (the front two teeth) the lateral incisors (the teeth on either side of the central incisors) they have multiple functions. your smile, having a full set of teeth will give you an even smilwe.
The Names and Jobs of Your Teeth. Your teeth all have names and functions, and while knowing the number of your tooth helps, it is great to know the name also. The four teeth in the front of your mouth (Top Numbers: 7, 8, 9, 10. Bottom Numbers: 23, 24, 25, 26) are known as incisors.