Around 45% of Asian elephants are known to have same-sex relationships.
More male giraffes are known to have rituals with other males than with females.
Bulls and even cattle are known to be having intercourse with the same sex.
Female marmots are known to have intercourse with other females.
European polecats are known o have intercourse with same-sex for only romantic purposes.
About 8-10% of rams attract to same-sex and around 18-20% attract to both males and females.
In hyenas, females are known to have intercourse with other females' hyenas.
Male lions are known to have intercourse with other males. And females are seen doing this only in captivity.
Lizards are known to have asexual reproductive system. Female increase hormones to have intercourse with other females.
Tortoises are known to have same-sex intercourse. And it is common to see in zoos and in wild.