Fig. 4 in Reproductive biology of Tylototriton yangi (Urodela: Salamandridae), with suggestions on its conservation

Fig. 4. Pre-spermatophore courtship behavior pattern of Tylototriton yangi in captivity. Clockwise from top-left: a) male nudging the side of the female's head with his snout; b) male nudging the side of the female's body; c) male blocking female's path and beginning to fold his tail; and d) male fanning the tip of his tail toward the female's head. Photographs by Kai WANG.