A tenebrionid beetle, Onymacris rugatipennis, it buried itself one moment and then rushed forth again, as if skating along the surface of infinite sand grains.

我们还看见种拟步行虫（Onymacrisrugatipennis）下把自己埋进，下又，好像在无垠的上溜冰，动作之快，我几乎来不及抢拍牠的模样。