The scene is strikingly reminiscent of children playfully hitching a ride on a grown-up’s body. One lion clambers onto the giraffe’s back, while two others wrap themselves around his legs. The giraffe ...

The world’s tallest mammals—and perhaps the most improbably proportioned animals on the planet—giraffes have always fascinated those lucky enough to see one. Archaeologist Loretta Kilroe of the ...