So the ball leaves a little thermal shadow, and the beetle climbs on top of the ball and wipes its face, and all the time it's trying to cool itself down, we think, and avoid the hot sand that it's walking across.
La bola deja una pequeña sombra térmica, y el escarabajo trepa sobre la bola y se lava la cara, en un intento de refrescarse, y resguardarse de la arena caliente sobre la que camina.