Alex's Mobs Mod Minecraft 1.20+ / 1.16.5

Alex's mobs is one of the most famous mods ever presented to Minecraft, and it started early, being only one year old; the reason Alex's mobs thrived this fast is the content it offered; this mod has delivered a large number of new animals to the game, most of them are inspired by real-life, while a small portion is fictional and entirely inspired by the author's imagination, there have been other mods that offered the same traits, but none has managed to do it as well as Alex's mobs mod, every animal here behave differently and lives in a specific biome, some are rare to find, and others are pretty common to come across, they also have different animations not only walking around and eating but attacking and behaving according to their nature.

The mod is fantastic because it also allows you to use the new animals in your best interest; some of the animals can be tamed. Hence, they can protect you or make for a wholesome pet, and others can only be useful after they're dead, like the crocodile as it drops its skin and the gazelle with its meat and horns.

If you're collecting mods for your adventure modpack, Alex's mobs should be at the top of your list. It won't lag your game and will add diversity to the game.