It's obvious they just shave or wax all the time
so that we can shave them
yes.
cause you dont have a head
Yes.
diving beetle
yes they have tiny millimeter hairs on their legs.
yes. they hear by using the hairs on their legs.
They are like feelers on snails
hairs to grab uneven edges
Yep amount varies
The hairs on a spider's legs are used primarily to smell. Spiders don't have ears, noses or taste buds, so they rely on these hairs to sense their surroundings, if something is moving nearby, and if something is edible. These hairs are called thrichobotria.
According to Animal Planet, ladybugs have six legs.