Yes, they do.
No. Just "its" and "it's."
No. The Greeks and the Romans are/were two different civilizations.
The ancient Romans and Greeks used small symbols and they eventually evolved in to the alphabet we use today.
No; instead, use "had gone".
Porcupines defend themselves with their quills.
thy use their quills to protect them from any predators or anything that may become a threat to them.
yes
They used them in necklaces
yes they keep regrowing for ever
they use their quills to scare them
they used quills
they use their quills to scare them
Probably quills and ink.
Only if it quills her lust.
It ducts its head to protect its unprotected face and underside, positions itself to where its tail is facing the foe, and backs itself into it. The quills stick in, and are hard to get out. If the quills get in the mouth, the offender might not be able to eat.
With their quills, yes. Porcupines use their quills as a defense against predators. If a predator gets too close and touches the quills, they are released and often become lodged in the skin. They are painful to remove and can cause infection.