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.
Canines (also called eye teeth or cuspids) are the teeth located next to the incisors towards the edge of the mouth. There are 4 canines in both primary and permanent human dentitions, one at each quadrant of the mouth. They are the third teeth from the center.