The tallest land animal, the lanky giraffe, is perhaps the first thing you think of when you picture the African savanna. With their long legs and necks, giraffes’ graceful silhouettes have featured ...

Dogs bark, sheep bleat and mice squeak, but what sounds do giraffes make? They hum, but only during the nighttime, a new study finds. According to audio recordings of giraffes taken at three European ...