Camels are known for being able to last for weeks without water. The store a large amount of the water in their hump and are able to walk around in the desert without any water and survive. They sure are persevering animals. But, there is another animal on the planet that survives even longer than the camel. Sorry camels, you are defeated by the tallest animal of the world, the giraffe. They can be without water longer than the camels thanks to their diet. To be more precise, the acacia leaves, their favorite food, is the secret behind their win against the camel. The leaves contain a lot of water and as the giraffe can eat more than 34 kg of food each day, their water intake is very high.