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feral cats are estimated to eat tens of millions of native animals each night in australia

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.