Talk about stamina: a male praying mantid (a member of the mantis genus) can continue to have sex for up to eight hours after his head has been chewed off (literally) by his female counterpart. Take that, Sting!
We thought the lady just had her sex partner for dinner once she got what she wanted from him, but apparently she can eat and then keep going, and going, and going. But lest you think males only think with their boy parts, apparently the male mantids can continue sex for hours after decapitation because they have a "second primitive brain in their abdomens."
However, praying mantid dudes should know that can save themselves by approaching the lady from behind.
[Sydney Morning Herald: Great sex, but his mind's elsewhere…]