Monsters and animals of all kinds are exclusively male, they can only reproduce with humanoid females.

Goblinoids (Orcs, Goblins, hobgoblins) would all behave similarly to what is expected of them. They all often raid Human, Elven, and Dwarven settlements, trade caravans, farms and the like, killing all the men, and enslaving all the women.

Goblinoids generally have no issue with murder, as long as it was a goblinoid committing it. Goblins are ok with theft, but orcs and hobs would prefer their people murder each other than steal. Rape, slavery, and bestiality are necessary to all of their cultures, and they usually keep large pens of chained up Human, Elven, and Dwarven women to use as breeding stock for themselves and their mounts.

Incest is of little concern to them.

Any intelligent monster that keeps communities may be assumed to behave like goblinoids.

All unintelligent beasts may attempt to catch human women unawares and have their way with them, but they will also attack caravans, small towns, and adventuring parties, slay the men, and rape all the women, leaving them pregnant.

All beasts (wolves, bears, wild horses) simply seek to catch humanoid women unawares while they stroll through meadows or forests, having their way with them and leaving them pregnant.

Below are examples of how Orcs, goblins and beasts treat captive women.