In the shelter of the grykes, mother cryptiles hide their eggs. They will be safer here than on the open salt plains, but there are dangers nonetheless. Snuggling about in the broad passageways of the grykes is the scrofa, a descendant of the wild boars that once ranged across much of Eurasia, North Africa and the Greater Sunda Islands in the Quaternary. Wild boars were hardy creatures, adaptable to changing conditions and generalized in their feeding habits. They fed largely on grain and roots, but occasionally would kill and eat smaller animals.