Well... the prehistoric equivalents of them, anyway. Treants are now Dryads, for example. I'm not sure I'll have the ANIMALmen (tigermen, leechmen, batmen, etc) in the game, though, as the game itself is aiming for a timeline a few million years before current DF, so that leaves plenty of time for them to evolve. Maybe a few scattered packs of Ape-Tigers or Man-Leeches or something (hell, I already have Horse-Apes, which was the only term I could use to describe
these things) to represent their distant ancestors first gearing towards their man-like existences.
I've only got a few Megabeasts planned thus far, first amongst them being Megalodon shark and I'm thinking of some saurian relict populations as well.
Here's the current creature list as of this morning. It's starting to fill out nicely.
DOMESTICATED: CAVE WOLVES, AUROCH
===ARID===
Arctic Ocean
Badlands - HARE, WOLF
Glacier - MAMMOTH, HARE, WOOLLY RHINO
Mountain - HARE, HYRAX
Rocky Wasteland - HARE, HYRAX, WOLF, ROCK WALLABY
Sand Desert - HARE, WOLF
Tundra - MAMMOTH, CAVE LION, ELK, GIANT ELK, HARE, WOOLY RHINO, WOLF
Taiga - MAMMOTH, PYGMY MAMMOTH, CAVE BEAR, SHORT FACED BEAR, GIANT ELK, HARE, MOA, WOOLY RHINO, WILD CAVE WOLF, WOLF, CAVE HYENA
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===TEMPERATE (experience seasons) ===
Broadleaf Forest - CAVE BEAR, SHORT FACED BEAR, HARE, MOA, HORSE-APE, WILD CAVE WOLF, WOLF, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, CAVE HYENA, WILD AUROCH, GIANT GROUND SLOTH, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Conifer Forest - MAMMOTH, PYGMY MAMMOTH, SHORT FACED BEAR, CAVE BEAR, HARE, MOA, HORSE-APE, WILD CAVE WOLF, WOLF, MARSUPIAL DEVIL, MARSUPIAL STRIPED DOG, CAVE HYENA, WILD AUROCH, GIANT GROUND SLOTH, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Grassland - MAMMOTH, PYGMY MAMMOTH, CAVE LION, SABRETOOTH CAT, CAVE BEAR, SHORT FACED BEAR, ELK, GIANT ELK, PLESSIPPUS, HARE, PYGMY DAWN HORSE, HORSE-APE, WOLF, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, WILD AUROCH, GIANT GROUND SLOTH, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Freshwater Lake - DUCK, TOXODON, PLATYPUS
Freshwater Marsh - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, TOXODON, SWAMP WALLABY, MARSUPIAL STRIPED DOG, PLATYPUS
Freshwater Swamp - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, TOXODON, SWAMP WALLABY, MARSUPIAL STRIPED DOG, PLATYPUS
Ocean
Saltwater Lake - DUCK, TOXODON
Saltwater Marsh - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, TOXODON, SWAMP WALLABY, MARSUPIAL STRIPED DOG
Saltwater Swamp - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, TOXODON, SWAMP WALLABY, MARSUPIAL STRIPED DOG
Savanna - MARSUPIAL LION, PLESSIPPUS, HARE, CARNIVOROUS KANGAROO, MOA, WOLF, GIANT SHORT-FACED KANGAROO, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, COMMON KANGAROO, FOUR-TUSKED ELEPHANT
Shrubland - PYGMY MAMMOTH, SABRETOOTH CAT, HARE, CARNIVOROUS KANGAROO, HYRAX, PYGMY DAWN HORSE, MOA, WOLF, GIANT SHORT-FACED KANGAROO, ROCK WALLABY, SWAMP WALLABY, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, COMMON KANGAROO, WILD AUROCH, GIANT GROUND SLOTH, GROUND SLOTH
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===TROPICAL===
Dry Broadleaf Forest - MARSUPIAL LION, HARE, MARSUPIAL TAPIR, HORSE-APE, THUNDER BIRD, WOLF, LESSER SABRETOOTH CAT, KOALA, GIANT KOALA, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Wet Broadleaf Forest - MARSUPIAL LION, HARE, MARSUPIAL TAPIR, HORSE-APE, THUNDER BIRD, WOLF, LESSER SABRETOOTH CAT, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Conifer Forest - MARSUPIAL LION, HARE, MARSUPIAL TAPIR, HORSE-APE, THUNDER BIRD, WOLF, LESSER SABRETOOTH CAT, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Grassland - TITANIS, SABRETOOTH CAT, HARE, LONG-NECKED ANTELOPE, PYGMY DAWN HORSE, ELEPHANT BIRD, HORSE-APE, THUNDER BIRD, WOLF, DIPROTODON, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, GIANT GROUND SLOTH, GIANT ARMADILLO, GROUND SLOTH, FOUR-TUSKED ELEPHANT
Freshwater Lake - OXBIRD, DUCK, TOXODON, PLATYPUS, GIANT ARMADILLO, HERON
Freshwater Marsh - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, CROCODILE, TOXODON, SWAMP WALLABY, DIPROTODON, MARSUPIAL STRIPED DOG, PLATYPUS, GIANT ARMADILLO, HERON
Freshwater Swamp - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, CROCODILE, TOXODON, LESSER SABRETOOTH TIGER, SWAMP WALLABY, DIPROTODON, MARSUPIAL STRIPED DOG, PLATYPUS, GIANT ARMADILLO, HERON
Ocean
Saltwater Lake - OXBIRD, DUCK, TOXODON, HERON
Saltwater Marsh - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, CROCODILE, TOXODON, SWAMP WALLABY, DIPROTODON, MARSUPIAL STRIPED DOG, HERON
Saltwater Swamp - SHOVEL TUSKER, MARSUPIAL TAPIR, DUCK, CROCODILE, TOXODON, LESSER SABRETOOTH TIGER, SWAMP WALLABY, DIPROTODON, MARSUPIAL STRIPED DOG, HERON
Savanna - TITANIS, MARSUPIAL LION, SHOVEL TUSKER, HARE, CARNIVOROUS KANGAROO, LONG-NECKED ANTELOPE, ELEPHANT BIRD, THUNDER BIRD, WOLF, GIANT SHORT-FACED KANGAROO, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, COMMON KANGAROO, FOUR-TUSKED ELEPHANT
Shrubland - TITANIS, MARSUPIAL LION, SABRETOOTH CAT, HARE, CARNIVOROUS KANGAROO, HYRAX, LONG-NECKED ANTELOPE, PYGMY DAWN HORSE, ELEPHANT BIRD, THUNDER BIRD, WOLF, GIANT SHORT-FACED KANGAROO, LESSER SABRETOOTH TIGER, SWAMP WALLABY, DIPROTODON, WOMBAT, MARSUPIAL DEVIL, KOALA, GIANT KOALA, MARSUPIAL STRIPED DOG, COMMON KANGAROO, GIANT GROUND SLOTH, GIANT ARMADILLO, GROUND SLOTH
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Still a lot to fill out, but it's getting there. And with all the marsupials in there I just had to include a Eucalyptus tree in there. Have been distracted though - got to modding in some herbs and spices, which I'll probably spin off into a Cuisine Mod. It's... interesting now, that I can make a Platypus Meat Sorbet with Coffee and Vanilla.
And that someone will actually eat it.
Any suggestions are, of course, welcome.