They can be both just like humans. However, most primates are left handed although humans and chimpanzees are mostly right handed. And then there are those who have no hand preference at all, but they are unusual.
left handed
He is right handed.
LEFT-HANDED! not right-handed!
He's right handed
She is Right-Handed
right handed
she is left handed
What is Bethany Hamilton right handed or left-handed
What is Bethany Hamilton right handed or left-handed
He is right and left handed mostly right handed.
Left handed
Left handed