When Males Live Longer: A Case from Territorial Female Snakes

Studies show that female Oligodon formosanus defending green turtle nests attack males, often targeting tails where reproductive organs are located. Although this leads to higher injury rates and shorter lifespans in females, the nests provide crucial, abundant food. This energy boost allows females to produce more offspring, increasing population success. In areas without nests, lifespan differences disappear. Thus, despite high costs, aggressive defense is favored because it enhances reproductive output—making it a high-risk, high-reward “big fight” strategy.