You may know that most sharks need to move to keep breathing, but the white-tip reef shark can afford to be lazier than that. During the day, it likes to rest in a cave or under a coral ledge, pumping water across its gills so it can breathe. That relaxation time pays off at night, when it hunts, chasing after its prey at great speeds, letting nothing get in its way! It usually hunts alone, but sometimes it will hunt with other reef sharks.