Dogs noses

[whiskysplits]

Why are dogs noses wet? I know it is supposed to be a sign that they are healthy, but if thats the case how come ours aren't wet?

[shaylee]

cos we are not dogs :-)

[RATTER15]

probably for the same reason we dont sniff our a$$es,

we aint dogs!!!

[whiskysplits]

I asked why they are wet - I know we aren't dogs.

[ruby27]

google gave me this - I looked it up because I was interested. This explains why they are not always wet and it would seem because its not a sweat gland for us so we haven't evolved tounges long enough
http://www.straightdope.com/mailbag/mdognose.h tml