Its also been revealed that the wisent (Bos bonasus) was a hybrid species evolved from female aurochs who mated with male steppe bison (Bos priscus): https://breedingback.blogspot.com/2017/02/confirmed-wisent-is-aurochs-hybrid.html?m=1#:~:text=On%20the%20nuclear%20genome%2C%20however,happened%20about%20250.000%20years%20ago).
