Ive got a 10 week old Yellow lab puppy. As most puppys do she gets a bit over excited and tears around the the garden but are lab puppys suposed to have Ridges on there back. this only happen when she gose loopy Please tell me if this is Normal :)

It sounds like she gets so excited and wound up she puts her hackles up! All dogs have erectile hair all along their spine, but more over the withers and rump, which they can raise to make themselves look big and fierce. She's really getting involved in her game!
:)

so dose mean she getting a bit to vicious. do u know eny tip how to calm her down ? :)

No, it doesn't mean she's getting too vicious. She's being normal - don't worry. She's just being young and having fun - it's her birthright.
:)

good good thanx for the help!