If a giraffes neck only has seven vertebrae, how is it so flexible?
Giraffes tower above all other mammals in the world. Loping along the African savannas on skinny, stiltlike legs, adult male giraffes can top out at 19 feet (6 meters) [source: National Geographic]. But only around half of that height comes from their stems — the rest is all neck. Then, if all of that length wasn’t enough for these spotted giants, they have yet another tool to expand their reach. Giraffes’ tongues can stretch as far as 18 inches (46 centimeters) to snag even the highest hanging leaf [source: San Diego Zoo]. In regard to the long neck, scientists continue to scratch their heads about the exact
