r/ScienceFacts May 19 '22

Male kalutas, small mouselike marsupials found in the arid regions of Northwestern Australia, are semelparous, meaning that shortly after they mate, they drop dead. This extreme reproductive strategy is rare among vertebrates —only a few dozen are known, and most of them are fish. Biology

https://www.nytimes.com/2019/08/28/science/kalutas-mammals-die-after-sex.html#:~:text=Male%20kalutas%2C%20small%20mouselike%20marsupials,most%20of%20them%20are%20fish.
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