Quote by David Attenborough

“A young male shingleback (skink), in spring, travels quite widely through the semi-desert, seeking a partner. He identifies a female by her chemical scent, her pheromones. He may then start to follow her, trailing behind her with his head close to her tail. The pair may stay together for six to eight weeks. If she is not physiologically ready to receive him, she will keep her body close to the ground. But eventually her mood may change and she will straighten her hind legs so that the rear of her body is lifted above the ground. He then crawls beneath her and twists his body so that their cloacas meet and he is able to insert his sperm. The two then separate and go their own ways. Unlike many lizards, the female retains her fertilised eggs within her until the young are so well developed that they are capable of independent life. This takes a long time. They grow so large that there is only room within her body for a very small number of them — usually no more than three. Then at last, after five months, she gives birth. The young waddle off into the desert and the female resumes her lonely life. But when spring returns, an adult will once again seek out the partner it had during the previous season. Such partnerships may last for as long as two decades. If one individual is killed, perhaps, as happens only too often, crushed beneath the wheels of a car, the survivor may stay beside the body gently licking it. A coldly dispassionate explanation of this is, of course, that the bereaved has formed a liking for its partner’s pheromone and is reluctant to leave its source. Other interpretations, more sentmental and anthropomorphic, might suggest that the survivor is disconsolate — if not grieving.”

Quote by David Attenborough