Do all animals grow a set of milk teeth, lose them, and grow adult teeth?

Or is it just humans?

Do all animals grow a set of milk teeth, lose them, and grow adult teeth?
Not nearly all animals do this, but all mammals do have two sets of teeth. The first set has no molars, and they are called milk or deciduous teeth.





Lots of animals don%26#039;t have teeth at all of course...





Generally, reptiles and fish lose their teeth all the time, replacing them as they are lost..Sometimes there is a pattern to this -- for example, I have a jaw I took from a dead pike I found (big predatory fish) which has one socket in the jaw with a good tooth, a small new one growing in the next socket, and the next socket with the tooth broken or missing. This continues along the jaw, so there is a good tooth in every third socket. The fish was about a metre long, and the teeth are about 3 cm long, with sharp edges down each side. You%26#039;d not want to be bitten by it...





Some mammals have two sets, but don%26#039;t use the whole set at one time. Elephants do this -- they have lots of molars, but only use two or so in each jaw at a time. As each tooth wears out the next moves up -- but when they%26#039;ve used the last one they have to stick to soft food such as fruit.





Occasionally a similar thing happens in humans. If the mouth is crowded, sometimes one tooth gets buried beneath another and never develops fully. If the upper tooth is lost in later life, the buried one sometimes %26quot;wakes up%26quot; and grows, giving an adult (or even elderly) person a nice new tooth.
Reply:dogs grow milk teeth too.
Reply:Most mammals have milk teeth
Reply:only mammals..(which includes human beings)
Reply:only mammals ;)
Reply:most animals have a first set then permanent one.I wouldn%26#039;t say only mammals coz crocs have a similar characteristic



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