Rare Footage Shows Tardigrade Threesome Caught on Camera.
Originally Published 2 years ago — by IFLScience
Scientists have captured rare footage of a three-way between some tardigrades, involving two males who were seemingly drawn to a female as she defecated. The males both stuck at it for about 30 minutes before one moved on. The remaining male continued mating with the female for a further hour. Tardigrades have rich and varied sex lives, with some marine species being bisexual and exhibiting far more complex copulation behaviors than researchers expected. Investigations have even allowed us to visualize the cloaca, revealing it’s covered by a triangular pouch with one opening.