Ticks are on 2 different episodes, and are #1 on Bloodsuckers, and #1 on Dieters. They can wait years patiently for a meal. Some species can go 18 years without eating. And when they finally do eat, they can drink 600 times their own weight in blood. Not even the king of the jungle is safe from them. A lions only defense against ticks is their tongue, meaning any spot a lion can't lick, a tick can get, and swell up.