All substances take up the least amount of volume in their (1.) solid phase, a little more volume in their (2.) liquid phase, and the largest amount of volume in their (3.) gas phase. The closer atoms or molecules get to one another, the less volume is occupied by the substance that they comprise.
Human bites can be either accidental or intentional. Intentional bite injury: This generally happens during fights and can result in a wide range of injuries from minor bruising to partial loss of body parts (for example, ears or nose).
A variety of mites are known to bite humans and cause irritation, itchy papules and rashes. Most of these mites are actually parasites of other animals not humans, but will bite humans when their normal hosts are not present. They are mostly nest parasites of birds, rodents and other animals.