Why cant hybrids from the same species produce offspring?
Hybrids of any two species contain an odd number of chromosomes within their DNA. To make offspring, half the number of chromosones from both parents, are mixed when the sperm and egg mix. If there are odd numbers of chromosones within the DNA of an animal, then it cannot produce sperm or eggs, because the normal number of chromosones is halved to produce the sex cells. For example, say an animal had 24 chromosones, its sex cell would contain 12 chromosones. two sex cells meet and would result in the baby having 24 chromosones – the correct amount. However, say a hybrid animal only had 23 chromosones, this number cannot be halved, and so the animal cannot produce sex cells. This is why any hybrid cannot produce offspring, even if they are the same mix of the two parent animals. it does not mathmatically work.