And out of the slime at the bottom of the valley crept dragons and horrible things with scales, and the jackals came trotting along the sand, sniffing up the air with their nostrils.
A new study reports that the planthopper Issus coleoptratus evolved a foolproof solution to this problem: in young nymphs of the species, the two legs meet under the belly in plates fringed with interlocking teeth.