We can also conclude that there were many different kinds of plants because of the different plant fossils that have been found. Each child is given a snack and, while they eat, they count the pieces of food left on their plate. Scientists have found fossilized teeth that tell us what these different animals ate. In the Science Center, you, yourselves, have looked at your teeth and you can see that they are different. Each type of tooth has a special job.
Some teeth are for biting.
Since many of you are getting your new front teeth, let's describe them. The new front teeth have sharp ridges on them still. Yes, in time the ridges wear off. These teeth are also called molars. Humans have both kinds of teeth because humans eat meat, and humans eat plants also.