除了人和灵长目动物,考拉也有指纹。
Researchers from the University of Adelaide explain:
"Koalas feed by climbing vertically onto the smaller branches of eucalyptus
trees, reaching out, grasping handfuls of leaves and bringing them to the
mouth. Therefore the origin of dermatoglyphes [fingerprints] is best
explained as the biomechanical adaptation to grasping, which produces
multidirectional mechanical influences on the skin. These forces must be
precisely felt for fine control of movement and static pressures and hence
require orderly organization of the skin surface."