A brief outline of what each pokemon species you might like to start with is like. Details are entirely due to my own decisions, and the few ecological facts on Pokemon I could find. If they are not to your opinion, then I suggest you play another type!
For definitions of Ecological terms, click here.
If the species you want to play is not here, then chances are you cannot play it. Talk to a moderator if you have any questions.
| Species | Replaces in Ecosystem | Diet | Social Structure | Habitat | Rarity | notes |
| Bulbasaur | tortoise | vegetarian | solitary | forest | common | loves to sun itself in the morning |
| Charmander | monitor lizard | carnivore - pichu, cyndaquil, sandshrew | solitary | open areas, rocky | uncommon | it will die if its tail flame goes out. |
| Squirtle | turtle | carnivore - fish | disorganized | aquatic and shore | common | none |
| Caterpie | caterpillar | herbivore | disorganized | forest | abundant | colour variants can occur |
| Weedle | grub | herbivore | disorganized | forest | abundant | none |
| Pidgey | pigeon | fruit, grubs, almost anything | disorganized | open areas | abundant | often found near human habitation |
| Rattata | rat | omnivore | disorganized | anywhere with food | abundant | pest in some areas |
| Spearow | sparrow | omnivore | disorganized | prefer grassland | abundant | more bad tempered then Pidgey |
| Ekans | snake | carnivore - eggs, small prey | solitary | forest | uncommon | none |
| Pikachu | mouse | omnivore | organized | open grassland | uncommon | rarer than Pichu |
| Sandshrew | shrew | omnivore - grubs | disorganized | rocky terrain, underground | common | although common, Sandshrew are rarely seen |
| Nidoran | rabbit | herbivore - grass | organized | grassland | abundant | white and black variants occur |
| Clefairy | none | fructivore | organized | caverns and forest | rare | worships the moon |
| Vulpix | fox | carnivore - small prey | solitary | anywhere | common | none |
| Jigglypuff | none | fructivore | disorganized | forest | uncommon | its song is hypnotic |
| Zubat | bat | carnivore - insects, small birds | disorganized | caves | common | none |
| Oddish | plants | minerals from soil | disorganized | grassland | common | buries itself in dirt to feed |
| Paras | mushroom | nutrients from host | solitary | forest | common | often found around tree roots |
| Venonat | aphid | herbavore | disorganized | forest | common | attracted to bright lights |
| Diglett | mole | insectivore | organized | underground | abundant | rarely seen |
| Meowth | cat | carnivore | solitary | forest | uncommon | the true wild Meowth has small spots on its fur |
| Psyduck | duck | omnivore | disorganised | near or on water | common | can interbreed with Farfetch'd |
| Mankey | monkey | omnivore | organised | forest | uncommon | rare around Lake Eerie |
| Growlithe | wolf | carnivore - large prey | organized | grassland | uncommon | hunt in packs like wolves |
| Poliwag | frog | insect larvae and fish | organized | near water | common | cluster in groups for protection |
| Abra | none | omnivore | solitary | forest | common | rarely seen because teleport at danger. |
| Machop | none | omnivore | organized | open areas | uncommon | none |
| Bellsprout | weed | minerals from earth | disorganised | grassland | common | none |
| Tentacool | jellyfish | small fish | solitary | aquatic | rare | usually found in sea water |
| Geodude | none | rock strata | disorganized | dry mountains | uncommon | crunch through rock - destructive |
| Ponyta | horse | grass | oraganised | grassland | common | avoids thick forest. |
| Slowpoke | none | omnivore | solitary | water's edge | uncommon | although Slowpoke cannot swim well, uses its tail to fish. |
| Farfetch'd | duck | herbivore - pondweed | organised | near water | uncommon | not noted for their sanity. |
| Doduo | chicken | seeds, grass, bugs | solitary | grassland | uncommon | one head watches whilst the other eats. |
| Seel | seal | fish | disorganised | near water | uncommon | prefer sea water,but can live in fresh. |
| Grimer | bacteria | pollution | organised | wherever pollution lies | common | absorb pollution into their body, thus cleaning up but becoming toxic |
| Shellder | shellfish | plankton | solitary | water's edge | uncommon | hide in sand and use tongue to catch prey. |
| Gastly | none | emotion | solitary | anywhere, particularly ruins | uncommon | survive on the emotions of others |
| Onix | none | rock strata | solitary | rocky mountains | uncommon | crush rocks to get the delicious mineral wealth within. |
| Drowsee | tapir | omnivore | solitary | anywhere | uncommon | none |
| Krabby | crab | carnivore - small prey | disorganised | near water | common | none |
| Cubone | badger | omnivore | solitary | caves or forest | uncommon | uses bone to bring down prey. |
| Lickitung | chameleon | carnivore | solitary | forest | uncommon | catches prey with its long tongue. |
| Rhyhorn | rhino | herbivore | solitary | grassland | uncommon | relies on hard skin to protect it from danger. |
| Chansey | none | omnivore | solitary | meadow | Rare | rarely found in wild anymore |
| Tangela | none | carnivore | solitary | forest | uncommon | uses its vines to hunt prey |
| Kangaskhan | kangaroo | herbivore | organised | grassland | common | females 20x's more common than males |
| Horsea | archerfish | insects and larvae | solitary | aquatic | common | have uneering aim with their bubble beams. |
| Goldeen | goldfish | insect larvae and plant debri | disorganised | aquatic | abundant | shoal together for protection |
| Staryu | starfish | fish | solitary | aquatic | common | uses jewelled light to attract potential prey. |
| Scyther | Mantis | insectivore | organised | forest | uncommon | none |
| Electabuzz | none | omnivore | organised | forest | uncommon | attracted to electric generators |
| Magmar | none | carnivore | solitary | inside volcanos | rare | none |
| Pinsir | beetle | fructivore | solitary | forest | common | usually found near fruit trees |
| Tauros | bison | herbivore | organised | grassland | common | none |
| Magikarp | carp | insect larvae, fish, small prey | disorganised | aquatic | abundant | none |
| Lapras | whale | fish | organised | mostly aquatic | rare | no lapras has ever been reported in Lake Eerie |
| Ditto | none | omnivore | solitary | anywhere | rare | none |
| Eevee (players start with 'preevee')/td> | mustelid | omnivore | organised | anywhere | rare | not as common as it may appear at first glance! |
| Snorlax | giant panda | herbavore | solitary | anywhere with food | rare | gorges itself then sleeps. |
| Dratini | Soa-soa Water dragon | omnivore | organised | prefer to be near water | rare | extremely endangered |
| Chikorita | cavy | fructivore | organised | forest | common | emits a sweet calming scent from its leaf. |
| Cyndaquil | hedgehog | insectivore | disorganised | mountainous terrain | common | turns on its flames in self defense. |
| Totodile | crocodile | carnivore | solitary | near water | common | bites anything that looks like food. |
| Sentret | raccoon | omnivore | organised | forest | common | insatiably curious |
| Hoothoot | owl | carnivore | solitary | grassland | common | nocturnal |
| Ledyba | beetle | fructivore | disorganised | forest | common | none |
| Spinarak | spider | carnivore - insects, small prey | solitary | forest | common | none |
| Chonchou | deep-sea fish | other fish, debri | solitary | aquatic | rare | found in oceans, where they stay near the bottom. |
| Pichu | mouse | omnivore | disorganised | forest | abundant | a good food source for carnivores |
| Cleffa | none | fructivore | organised | forest, caverns | uncommon | may be seen gazing at the stars |
| Igglybuff | none | fructivore | disorganised | forest | common | none |
| Mereep | sheep/goat | herbivore | disorganised | grassland | abundant | most at the lake are in captivity, |
| Marill | water rat | omnivore | disorganised | near water | common | none |
| Sudowodo | tree | minerals from earth | soliatary | forest | common | looks like a tree , acts like stone. |
| Hoppip | none | nectar and fructivore | disorganised | woodland | common | easily blown by the wind |
| Aipom | monkey | omnivore | organised | forest | uncommon | pranksters and mischevious |
| Sunkern | seed | minerals from earth | disorganized | grassland | common | none |
| Yanyan | dragonfly | insectivore | solitary | near water | abundant | distant descendant of Dragosi |
| Wooper | salamander | omnivore | organised | near water | abundant | love spherical objects |
| Murkrow | crow | predominently carnivore | disorganised | grasslands | common | congregate in noisy flocks |
| Misdrevious | none | chaos | solitary | anywhere | uncommon | likes to cause trouble, feeds off confusion |
| Wobuffet | none | omnivore | solitary | caves | rare | very shy |
| Girafarig | giraffe/goat | herbivore - browses | organised | forest | uncommon | both heads can think, although the tail is less advanced mentally |
| Pineco | flytrap | insectivore | disorganised | forest | common | doesn't move - not very interesting |
| Dunsparce | snake | carnivore | solitary | forest | uncommon | can fly by float slightly, move backwards or dig with tail |
| Gligar | bat | carnivore | disorganised | mountains | uncommon | clamps to cliffs and drops on prey |
| Snubbul | none | omnivore | solitary | forest | uncommon | popular as companion pets of women. |
| Qwilfish | porcupine fish | fish | solitary | aquatic, usually near bottom | uncommon | inflate with air and fire quills |
| Shuckle | none | fructivore | solitary | forest | rare | stores berries in its shell til they ferment. |
| Heracross | stag beetle | nectar | disorganised | forest | uncommon | none |
| Nyura | cat | carnivore | solitary | forest | uncommon | likes to eat eggs. |
| Teddiursa | bear | omnivore, loves honey | disorganised | forest | uncommon | hoard food for winter |
| Slugma | atomic slug | molten rock | disorganised | volcanos | abundant | never sleep, never stop moving |
| Swinub | pig | omnivore - prefers roots | organised | forest | common | often found rooting around trees for truffles |
| Corsola | coral | ? | organised | deep sea | rare | rarely moves, but continuously grows. |
| Remoraid | remora | fish and insect larvae | disorganised | deep sea | rare | can attach dorsal fin to boats to hitch a ride. |
| Delibird | none | omnivore | disorganised | cliffs | uncommon | carries food with it all the time. |
| Mantine | Manta Ray | fish | disorganised | deep sea | rare | Remoraid often catches a ride with it. |
| Skarmory | hawk | carnivore | solitary | anywhere | uncommon | nests in bramble bushes |
| Houndour | wolf | carnivore | organised | forest | uncommon | howls vary depending on what pack is doing. |
| Phanpy | elephant | herbivore | organised | grassland | uncommon | playful |
| Stantler | deer | herbivore | organised | forest | common | creates illusions with its horns |
| Smeargle | none | omnivore | solitary | forest | uncommon | makes its territory with secretions from its tail. |
| Magby | none | carnivore | solitary | volcano | uncommon | very, very hot |
| Elekid | none | lightning | disorganised | mountainous areas | common | use their plug-heads to attract electricity and energy |
| Miltank | cow | herbivore | organised | grassland | common | domesticated relative of Tauros |
| Larvitar | none | rocks and minerals | solitary | mountains | uncommon | eats mountains |
| Furflit | Frogmouth (bird) | Omnivorous | solitary | mountains, forest | rare | evolved gender is based on diet. |
| Makimur | lemur (diurnal) | fructivore | organised | forest, jungle | rare | hyperactive and curious |
| Galagost | lemur (nocturnal) | omnivore | organised | forest, jungle | rare | quiet and secretive |