it is probably a muscle. Holds stuff together when standing, relaxes when lying down. But if its a lump go see a doctor. It's sounds like you may have a hernia. Please see your doctor.
ovipositor
No, they sleep laying down.
yes they can
Standing up sometimes laying down
They dig holes for their egg laying with ovipositer.
Why not? Cows give birth any way they feel comfortable, standing or laying.
A river. It falls a waterfall (standing up) and runs lying down.
standing up, did this on web assign
laying or sitting for to long and then standing because when your sitting or laying your blood build up inside of you and when you stand it just all comes out
Egg shells are known to be stronger when standing upright. This is why we crack eggs open on the side.
3.5 laying down and standing 4.5.
obv not they can walk They Sleep laying at the bottom or the ocean