The animal of the day is the Bedbug. (Did you know: Bedbugs are a huge plague in New York, Cleveland and Detroit right now! They can go up to a YEAR without feeding, though they typically feed every 5-10 days.
All bedbugs mate by traumatic insemination. Because the female has no genital opening, the male pierces her abdomen with his hypodermic genitalia and ejaculates into her body cavity. Yeah. That’s weird.
For grown-ups only [suitable for work, but weird]: