Ep. 277: These Paired Roaches Show Commitment Through Cannibalism And Aggression + In This Parasitic Species, Every Ant Is A Queen

In this episode of Well... That's Interesting, host Jill Chacha explores two astonishing examples of extreme commitment and survival strategies in the insect world. The first half dives into the unique mating behavior of *Salgania taiwanensis*, a wood-feeding cockroach species where pairs engage in mutual wing-eating as a sign of lifelong monogamy. Through meticulous lab experiments, researchers confirmed that after consuming each other’s wings, these roaches become fiercely loyal, aggressively defending their bond against any intruders—proving that selective aggression is a behavioral hallmark of their social commitment. The second half shifts to Japan’s *Temnothorax kinomuri*, a parasitic ant species where every individual is a queen. These ants reproduce asexually via parthenogenesis, producing only more queens without workers or males. They invade other ant colonies, kill the reigning queen, and take over—demonstrating a rare fusion of parasitism and asexual reproduction. Both species challenge conventional notions of love, loyalty, and survival in the animal kingdom.