mammals born without teeth
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]I wrote this as I went. I knew more at the end than at the beginning.]
<< What animals who bear teeth as a species are born
without their first set? I cannot think of any. >>
Cats. Two litters of kittens have been born here and Holly is very
observant. She said they don't get their teeth until after a few days.
And so I looked on google.
Lions:
" The cubs are born blind, after a few days the begin to see. The cubs are
also born without teeth. They get their baby teeth or milk teeth when they
are several weeks old. " http://www.geocities.com/sarmotilover/lions.htm
For shrews, I found this: "The infants are naked and blind at birth, but
mature rapidly." I had thought maybe mice and kangaroos and others which are
born not quite "done" probably don't have teeth.
http://sevilleta.unm.edu/data/species/mammal/sevilleta/profile/merriam-shrew.h
tml
"Just like you and me, the sperm whale is born without teeth."
http://www.extremescience.com/GreatWhiteShark.htm
"Dolphins
... when referring to the sea mammal belonging to the Cetacean order and ...
inches in length.
They are born without teeth, not growing them for several ... "
-=- Milk-producing glands: All female mammals possess mammary glands that
secrete milk. Newborn mammals, which are born without teeth, suckle this
milk. -=-
http://www.aptoshs.pv.k12.ca.us/~agoldenk/students/ (the rest of the address
is messed up, sorry--couldn't get it, but it seems to be a school summary or
a for-school thing??)
-=-The shift from polyphyodonty to diphyodonty allowed only one replacement
of teeth in mammals per lifetime. These deciduous or milk teeth include
incisors, canines, and deciduous molars. When the animals are young the
deciduous molars perform the active chewing function. When the mammal has
matured, the new set of teeth includes permanent premolars and molars to
perform chewing (Strickberger 1995).
-=-Young skulls grow so rapidly that a teeth replacement would be needed
almost immediately should the young be born with fully formed and functional
teeth. The need for a non-chewing food for the young arose. -=-
From Reptile to Mammal:
Evolution of Early Mammals
by Katharine A. Knafelc
http://www.dragonlordsnet.com/crfrm.htm
Sandra
<< What animals who bear teeth as a species are born
without their first set? I cannot think of any. >>
Cats. Two litters of kittens have been born here and Holly is very
observant. She said they don't get their teeth until after a few days.
And so I looked on google.
Lions:
" The cubs are born blind, after a few days the begin to see. The cubs are
also born without teeth. They get their baby teeth or milk teeth when they
are several weeks old. " http://www.geocities.com/sarmotilover/lions.htm
For shrews, I found this: "The infants are naked and blind at birth, but
mature rapidly." I had thought maybe mice and kangaroos and others which are
born not quite "done" probably don't have teeth.
http://sevilleta.unm.edu/data/species/mammal/sevilleta/profile/merriam-shrew.h
tml
"Just like you and me, the sperm whale is born without teeth."
http://www.extremescience.com/GreatWhiteShark.htm
"Dolphins
... when referring to the sea mammal belonging to the Cetacean order and ...
inches in length.
They are born without teeth, not growing them for several ... "
-=- Milk-producing glands: All female mammals possess mammary glands that
secrete milk. Newborn mammals, which are born without teeth, suckle this
milk. -=-
http://www.aptoshs.pv.k12.ca.us/~agoldenk/students/ (the rest of the address
is messed up, sorry--couldn't get it, but it seems to be a school summary or
a for-school thing??)
-=-The shift from polyphyodonty to diphyodonty allowed only one replacement
of teeth in mammals per lifetime. These deciduous or milk teeth include
incisors, canines, and deciduous molars. When the animals are young the
deciduous molars perform the active chewing function. When the mammal has
matured, the new set of teeth includes permanent premolars and molars to
perform chewing (Strickberger 1995).
-=-Young skulls grow so rapidly that a teeth replacement would be needed
almost immediately should the young be born with fully formed and functional
teeth. The need for a non-chewing food for the young arose. -=-
From Reptile to Mammal:
Evolution of Early Mammals
by Katharine A. Knafelc
http://www.dragonlordsnet.com/crfrm.htm
Sandra