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).
From mites to mosquitoes, a variety of bugs bite humans, creating itchy skin reactions that range in severity from a mild irritation to a nasty rash. Itching is one of the more common reactions to bug bites, generally brought about by foreign proteins present in the offending insect's saliva.