Mules have been documented to very rarely reproduce, and female ligers have been bred with both tigers and lions (making ti-ligers and li-ligers, respectively). In any case the math works at least as well as an elephant + duck mating.
Usually they are. Haldane’s Rule notes that in hybrids the sex with two different sex chromosomes (XY) is highly likely to be sterile (there’s been a couple of male mules with what should be viable sperm but it never worked) but on rare occasions females (XX) can have viable offspring if the male they mate with is not a hybrid. Coywolves are generally fertile, tigon/liger females occasionally, female mules have reproduced the least and it’s only been documented a handful of times.
Neither can produce offspring.
-*-=+ the math checks out.
Mules have been documented to very rarely reproduce, and female ligers have been bred with both tigers and lions (making ti-ligers and li-ligers, respectively). In any case the math works at least as well as an elephant + duck mating.
Usually they are. Haldane’s Rule notes that in hybrids the sex with two different sex chromosomes (XY) is highly likely to be sterile (there’s been a couple of male mules with what should be viable sperm but it never worked) but on rare occasions females (XX) can have viable offspring if the male they mate with is not a hybrid. Coywolves are generally fertile, tigon/liger females occasionally, female mules have reproduced the least and it’s only been documented a handful of times.
Edit: typo