This pack is themed around the Ice Ages, most animals have been themed around that concept and so are the tools, the furniture and the world as a whole, with some critters from both modern and ancient world added into the mix as well, the world is even filled with snow, but with an addon included with the pack you can enjoy a less snowy and more lively version of the prehistoric world as well.

Some Mob changes incude:

Cats = Thylacosmilus
Chicken = Capercaillie
Cow = Auroch
Creepers = Artic Creepers
Dolphin = Acrophyseter
Squid = Cuttlefish
Salmon = Sabertooth Salmon
Zombie = Neanderthal
the Skeletons = Saurian Spirits
Enderman = Will-o'-The-Wisp
Endermite = Bug-o'-The-Wisp
Evoker Fangs = Purussaurus
Llama = Macrauchenia
Ocelot = Smilodon
Panda = Megalonyx
Parrot = Raven
Phantom = Snowy Owl
Pig = Boar
Hoglin = ''Hell Pig'' (Daeodon)
Strider = Gastornis
Piglin = Boarlin
Piglin Brute = Hell Pig-man
Zombiefied Piglin = Primitive Boarlin
Polar Bear = Cave Bear
Fox = Sebecus
Ravager = Mammoth
Sheep = Saiga
Slime = Tar Slime (original idea by the F&A Devs)
Turtle = Stupendemys
Wolf = Dire Wolf
Zombie Villager = Trogloficate (Name by Ophious from the Carnivores saga)
Ghast = Magmatic Colossal Squid(idea by Pallad from the Carnivores saga)
Silverfish = Rats
Guardians = ?????
Wither = ?????
Ender Dragon = ?????

My name on Discord is Fluffy#1094 in case you want to give me suggestions and stuff like that.