A little swollen.
She is pregnant and not far from giving birth
well i am not sure but i think it is normal because my dog had pupps and she was fine my friend's dogs nipples were swollen !
It will change its behavior
For the vagina about a week nipples until she done nursing, after nursing it will take 10 to 14 days till all milk is dried up
because she was dying in child birth
under his nipples
Aussie's have nipples from birth, they may be hidden by their fur.
No
--milk them
The rings around your nipples are what change in colour and are due to the changes in the hormones that your body is creating.
Normally they do not, but inverted nipples to occur rarely. At birth all nipples are inverted, this is because of the way glands develope as an embryo, but normall proliferation of the mesenchyme behind the nipple will push it out shortly after birth.