Why do humans have two sets of teeth?

Answer 1

1. A child's jaw is smaller and requires smaller teeth. That's why when we are born and we start growing out teeth, those teeth are temporary and fall out later on.

2. People needed their teeth to live. Having two sets of teeth (and periodically growing more teeth, like molars and wisdom teeth) meant that even if the front teeth rotted away, the person would still be able to eat. Dentistry hasn't been around anywhere near as long as humans have.

Answer 2

In many cases, it is because some are prey and some are predators. It is generally the carnivores that have sharp teeth as they need them to tear apart meat. Herbivores, on the other hand, have "duller" teeth as all they only eat plants and therefore sharp teeth would be unnecessary.

Of course, there are always exceptions, and having sharp teeth is not necessarily restricted to carnivores. The panda, which is completely herbivorous, has particularly sharp teeth, but it also has flat molars for grinding the bamboo shoots it eats.

Answer 3

so we can MASH our food ...and because we do not hunt for our food which means having sharp teeth is a waste of time, we don't need to fight for our food and sink our teeth onto it and hold it down. We just.......shoot it.

Answer 4

Humans have two sets of teeth because the first set, called primary or baby teeth, act as placeholders for the permanent teeth. Baby teeth fall out to make room for the larger and stronger permanent teeth that come in later. This two-stage process allows for a gradual transition to a full set of adult teeth.

Answer 5

So they can gnaw and nibble at their food to get it into digestible pieces.

Answer 6

We have incisors because we are carnivores too.

Answer 7

Because they are herbivores so they don't need sharp teeth to bite into meat but rather grind grass with them to make it easier to swallow