humans only get one replacement - baby to adult teeth, sharks for exemple can replace teeth time and time again.
2007-01-25 09:01:07 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
Sharks need thier teeth to survive! Humans can survive without teeth!
2007-01-25 09:11:19 · answer #1 · answered by sparklingstar 2 · 0⤊ 3⤋
sharks get replacement teeth as they are designed for high power tearing and ripping and to prevent damage to the month the teeth are more easily broken off than some animals. then they are quickly replaced to allow the fish to keep feeding. we dont actually need to replace our adult teeth if we were to eat a proper diet, todays diet consists of too much sugar and this causes rotting and then death to the teeth. if we ate properly we more or less wouldn't need dentists as much as we do.
2007-01-25 21:33:52 · answer #2 · answered by Anonymous · 2⤊ 0⤋
All animals are different. Only some animals get replacement teeth. For rodents like mice and hamsters, on the other hand, their teeth actually grow continually so they need to keep gnawing at things to keep them worn down. For primates like humans and chimps, we only get the one set after our milk teeth. It's just different ways our evolution has taken us.
2007-01-26 06:36:33 · answer #3 · answered by Daniel R 6 · 0⤊ 0⤋
undesirable eating routine and human beings stay longer. A dogs would in user-friendly words stay to fifteen years yet ought to human beings contained in the Western international stay to about seventy 5 besides so the tooth ought to very last. that is likewise why animals do not want dentures.
2016-12-03 01:19:58 · answer #4 · answered by ? 3 · 0⤊ 0⤋
this is because of their adaptation.
sharks use their teeth much more than humans and with a lot more power.
this princible will probably apply to all animals.
2007-01-26 08:21:12 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Not all animals grow back teeth. A dumber question would be "why do animals have 4 legs when humans only get 2?".
2007-01-25 09:19:14 · answer #6 · answered by dantrc724 4 · 0⤊ 3⤋
Humans do. Children are born with 'milk teeth' which fall out at about age 10-12 - hence those horrible school photographs. These are replaced with permanent teeth.
2007-01-25 09:09:41 · answer #7 · answered by Bunts 6 · 0⤊ 4⤋
Not all of them do. When an elephant's (I think its an elephant) teeth wear out they dont get any more. They cant chew leaves etc and starve.
2007-01-25 09:09:01 · answer #8 · answered by jeanimus 7 · 3⤊ 1⤋
Their Dentists don't charge anything. We could learn a lot from the animals
2007-01-26 05:39:16 · answer #9 · answered by Speyman 2 · 0⤊ 1⤋
Dunno but if you find out what is causing that do please let me know. I already lost nearly all my hair and 5 teeth so if you can find out what is causing it you could save me before I disappear entirely.
2007-01-25 09:12:14 · answer #10 · answered by Anonymous · 1⤊ 1⤋