Kind of random but I'm curious for a personal project as to exactly which mammal species have delayed implantation? I keep reading it is found in about 100 species, but which ones exactly? I've found a couple through self-research but the list is far from complete. So far I've discovered these species used delayed implantation: American black bear Andean bear Asiatic black bear Brown bear Fisher North American porcupine Polar bear Red kangaroo Roe deer Sloth bear Straw-coloured fruit bat Sun bear This list is obviously incomplete and I'd love help finishing if it's not too much trouble. Thanks!
