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Author Topic: Why do (most) dogs have 18 fingers and not 20?  (Read 7280 times)

tecnocato

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Why do (most) dogs have 18 fingers and not 20?
« on: 06/02/2009 12:16:04 »
Israel Melandez asked the Naked Scientists:
   Why do (most) dogs have 18 fingers and not 20? What are the theories
behind the two front "thumbs"?... Mine use it all the time, especially
when hoarding toys.
What do you think?


 

Offline RD

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Why do (most) dogs have 18 fingers and not 20?
« Reply #1 on: 21/02/2009 18:33:57 »
Quote
The dewclaws are not dead appendages. They can be used to lightly grip bones and other items that dogs hold with the paws. However, in some dogs these claws may not appear to be connected to the leg at all except by a flap of skin; in such dogs the claws do not have a use for gripping as the claw can easily fold or turn.
http://en.wikipedia.org/wiki/Dewclaw

 

The Naked Scientists Forum

Why do (most) dogs have 18 fingers and not 20?
« Reply #1 on: 21/02/2009 18:33:57 »

 

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