Giraffes are one of the most iconic animals of the savannah. Their long necks, tall, twisted legs, and the unique pattern of spots and colors in their fur leave no one indifferent. They can grow to over five and a half meters tall, making them the tallest animal in the world. To pump blood to their heads, their heart, which weighs 11 kilograms, generates a pressure three times that of a human heart. Their tongue is also prodigious: it can measure up to half a meter in length and allows them to surgically pluck tiny acacia leaves from among very sharp thorns.