Giraffes are famous for long necks, but their 20-inch (50cm) tongues are also impressive. These gentle herbivores spend most of their time eating, consuming hundreds of pounds of leaves each week and traveling miles to find enough food. Given that they eat for hours, the darker coloring of their tongues helps prevent sunburn! Giraffe tongues have also developed a thick skin and exceptional dexterity as protection against the vicious thorns that grow on their favourite food, the acacia tree. Although they are largely classified as a species at least concern, wild giraffes declined by 40 percent in the past 15 years and need protection from poaching and habitat loss.