Ab asks:

>Why do teeth of a kid fall and grow again ? Is there any other
>animal species which shows the same feature for teeth ?
>
>What evolution feature does it exhibit ?

An excellent and simple explanation of the phenomenon (which is common to
almost all mammals) appears at:

   http://animaldiversity.ummz.umich.edu/anat/tooth_replacement.html

Wirt Atmar
---
þ RIMEGate(tm)/RGXPost V1.14 at BBSWORLD * Info{at}bbsworld.com

---
 * RIMEGate(tm)V10.2áÿ* RelayNet(tm) NNTP Gateway * MoonDog BBS
 * RgateImp.MoonDog.BBS at 1/27/03 12:49:46 PM