4. Hooded seals blow a big pink balloon through their nose…
The larger this balloon, the more likely a bachelor is to impress the lady seals.
3. The male anglerfish bites into a female and fuses their bodies together for life
When the male anglerfish reaches maturity, its digestive system literally deteriorates, meaning it needs to latch onto a female angler or die.
3. Flatworms engage in penis fencing to determine who gets pregnant
Since flatworms are hermaphrodites, they battle with their penises – whoever gets stabbed (and inseminated first) loses and gets to be the mom.
2. When a male argonaut comes near a female, it detaches a tentacle full of sperm
The tentacle then swims to the female. Creepy.
1. The red cap Manakin moonwalks.
Finally, something humans can relate to!