While tracking down a particularly large snake in the swamps of Brazil , photographer Luciano Candisani got more than he'd hoped for: the first known image of a female green anaconda squeezing her mate to death. They found her half-out of the water, entangled with a small male on the river bottom—perhaps, Candisani thought, a post-mating embrace. He watched the pair for a few hours, taking some underwater photographs from about three feet away. Though he took the photo in , Candisani says he is publishing the photograph with National Geographic now because the swamps in which these anacondas live are under increasing threat by wildfire and the proximity of agriculture.
Exclusive Picture: Female Anaconda Strangles Male After Sex
Female sex pheromone in the skin and circulation of a garter snake
Snake sex is every bit as peculiar as you would expect
Stories of women and snakes have always fascinated me. From ancient archaeology of snake Goddesses on Crete, to mythology of Medusa, to Biblical era Eve; women and snakes have been combined in stories around sexuality and consciousness, or rather a knowingness. Slithering around that knowingness —were notions of sinfulness, shaming and blaming.
The vomeronasal organ VNO is important for activating accessory olfactory pathways that are involved in sexually dimorphic mating behavior. The VNO of male garter snakes is critically important for detection of, and response to, female sex pheromones. In the present study, under voltage-clamp conditions, male snake VNO neurons were stimulated with female sexual attractiveness pheromone.