From Bulbapedia, the community-driven Pokémon encyclopedia.

Symbiotic relationships refer to any interaction between the members of two different species.

The recorded interactions are currently based on Pokedex entry data.

Mutualism

Is when both species equally benefit from the interaction, including:

• Diglett and Dunsparce share their underground networks and happily co-exist
• Shellder and Slowking gain equal benefit, Shellder gets food whilst Slowking acquires a higher intellect
• Seadra aides Corsola by providing protection from predation, in return Corsola acts as refuge for Seadra
• Remoraid aides Mantine in battle, though is typically found stuck to its underside where it feeds off of Mantine's scraps
• Flygon aides Krookodile by whipping up a sandstorm to conceal it, the two share the captured prey
• Karrablast and Shelmet's linked evolution leads to Accelgor becoming lighter and quicker from losing its shell to Escavalier whom enjoys the benefits of a defensive shell
• The Flabebe line help flowers to grow, but also use them as their source of energy
• Skrelp and its evolution Dragalge get along well with Dhelmise
• Trevenant protects the forest against threats including logging

Commensalism

Refers to one species benefitting whilst the other gains neither benefit or harm, for example:

• Corsola serves as a protective home to small water Pokémon including Horsea and Luvdisc
• Blissey happily gift their eggs to Pokémon to calm them down
• Lotad ferry Pokémon who cannot swim across bodies of water
• Seedot get their nutrients from attaching themselves to trees
• Torterra is also known as the "moving forest", its growing trees serves as a nest site for small Pokémon
• Alomomola secrets a wound-healing mucus, it also ferries injure Pokémon to shore
• Joltik live on larger Pokémon and rely on the static energy generated for energy
• Druddigon uses the tunnels of burrowing Pokémon like Onix and the Diglett line to hide and hunt for prey
• Grubbin inhabit areas surrounded by electric type Pokémon to act as defense against its main predator, bird Pokémon

Autotrophs

Refers to a species that obtains their energy through means outside of the consumption of another organism such as photosynthesis.

• The Bulbasaur line, Oddish, Exeggutor, Skiploom,Sunflora,Turtwig line, Leafeon, Snivy line, Skiddo, Helioptile line, Rowlet are known to gain energy from the sun
• Graveler eat up to a ton of rcks per day, preferring moss-covered rocks
• The Magnemite, Elekid line, Blitzle, Togedemaru feed on electricity supplies for energy
• The Drowzee and Hypno, whom has a particular liking for Komala, feed on dreams
• Sunkern, Silcoon are said to only eat dewdrops
• Larvitar and Mudbray line are said to only eat dirt
• Azurill's tail contains all the nutrients it requires to grow
• The Aron line and Ferroseed eats iron ore
• Torkoal eats coal to fuel its energy
• Shuppet are fuelled by negative emotions such as malice and envy
• Snorunt eat only snow and ice
• Cofagrigus consumes gold
• The Klink line generate energy from their interlocked gears spinning
• Fennekin eat twigs
• Klefki eat metal ions and minerals
• Minior eat dust from the ozone layer
• Turtonator consumes minerals and sulphur

Predation

Refers to one species being eaten by another, in which only the predator benefits.

Herbivory

• Caterpie, Weedle, Wurmple, Dustox, Slakoth rely on a diet of leaves
• Butterfree,Beedrill, Heracross,Teddiursa, Beautifly, Combee line, Mothim,Cherubi line, Oricorio, Cutiefly line eat flower nectar
• Pikachu eat lightning-roasted berries
• Diglett eat vegetables and plant roots
• Abra,Shuckle, Ursaring, Meditite, Chimecho, Cranidos,Tepig, Pansage, Pansear, Passimian eat berries
• Natu forages for food on the ground, though is often seen eating food from cactus'
• Marill, Lotad feeds on aquatic plants
• Girafarig, Shieldon eats tree shoots and plants
• Swinub and Piloswine seek out mushrooms covered by snow
• Lombre eat aquatic mosses that grow on riverbeds
• Breloom feeds off of forest trees and plants
• Nincada feeds off of tree roots for moisture and nutrients
• Tropius and Wynaut enjoy fruit for their energy needs
• The Shieldon line eat berries and grass
• Ducklett dives for peat moss
• The Swirlix lines obsession with sweet foods caused its fur to become sticky
• The Binacle line enjoy eating washed up seaweed
• Skrelp prefers rotten seaweed and kelp
• The Noibat line enjoy fruit
• Pikipek enjoys berries
• Grubbin enjoy tree sap
• Komala feeds on leaves that have a sedative product in them

Omnivorous

• Flareon breathes fire to cook Berries or captured prey
• Snorlax is capable of digesting any food including Muk's poison
• Delibird is omnivorous, and enjoys bug Pokémon
• Poochyena is said to be an omnivore
• Emolga enjoys lightning roasted berries and bug Pokémon
• Rufflet crushes berries and prey in its sharp claws
• Yungoos and Wimpod are regarded as scavengers

• Trumbeak are also omnivores, though it is unclear what they eat specifically

Carnivorous

Examples of predation include:

• Pidgeotto and Crabrawler eat Exeggcute
• Pidgeot and Fearow preys on fish pokemon. Only Pidgeot is noted to eat Magikarp, picked from near the surface of water
• Spearow preys on bug Pokemon
• Sandshrew dig holes to trap bug Pokemon
• Ekans eats the eggs of bird Pokémon including Pidgey and Spearow
• Golbat and Crobat hunt for the blood of both Pokémon and people
• Golduck,Poliwhirl, Lapras, Vaporeon actively hunts in the water for fish Pokémon
• Dewgong, Wailmer, and Wailord eat Wishiwashi
• Alolan Grimer and Muk prey on Trubbish and Garbodor
• Cloyster actively hunt for Slowpoke tails, even on land
• Kingler's pincers allow it to prey on Shellder and Cloyster
• Omastar's fangs allow it prey on Shellder
• Aipom eat Bounsweet
• Pineco feeds on bug Pokémon including Cutiefly
• Sneasel hunt in packs to steal eggs to be eaten
• Remoraid are capable of shooting water up to 300 feet away at flying prey
• Taillow, Swellow, and Starly prey on Wurmple
• Wingull eat Finneon and Wishiwashi
• Pelipper eat Luvdisc and Wishiwashi
• Sableye eat Carbink
• Vibrava is said to preserve its prey in the sand and digest it with fluids before consumption
• Glalie eat their prey, including Vanillite, in one whole bite
• Relicanth ear microscopic organisms
• Metang actively pursue Nosepass
• Starly eats the small ball on Cherubi's stem
• Shellos eat plankton
• Lumineon eats Staryu's arms
• Weavile eat both Alolan Vulpix and Alolan Sandshrew
• Tangrowth is a predator, though its vines are also popular with unnamed Pokémon
• Froslass, Frillish and Litwick lines consume souls for energy
• Sandile are opportunistic hunters who target vulnerable Pokémon like Trapinch
• Carracosta prey on Omanyte and its evolved form Omastar. Its strong jaws are capable of breaking through bone and shell.
• Archeops preys on Omanyte
• Mandibuzz preys on Cubone
• Heatmor burns through Durant's body to feed on them
• Unnamed bird Pokémon prey on Scatterbug and Spewpa
• Talonflame prey on bird pokemon including Wingull and Pikipek
• Tyrantrum hunt Amaura
• Toucannon and other unspecified bird Pokémon eat Bounsweet
• Gumshoos eats Rattata and Raticate
• Mareanie and Toxapex eat the branches of coral on Corsola's head
• Salandit eat bug Pokémon, attracting them with its scent. The male Salandit gather food for their female counterparts and Salazzle
• Minior are preyed on by larger Pokémon that also inhabit the ozone layer
• Bruxish's sharp teeth enable to eat indiscriminately, including Shellder and Mareanie
• Dhelmise uses its chain-like seaweed to ensnare prey, targeting their vitality. It prefers larger prey like Wailord

Arbok, Vileplume Bellsprout line, Scyther, Horsea line, Kabutops, Aerodactyl, Noctowl, Spinarak, Ariados, Chinchou line, Quagsire, Umbreon, Forretress,Gligar,Houndour line, Grovyle, Linoone,Mawile, Trapinch line, Cacnea line, Whiscash, Lileep line Clamperl line, Metagross,Starly line, Roserade Carnivine, Carracosta, Litleo line, Dragalge, Sylveon, Gourgeist, Shiinotic are all known predatory Pokémon, though it is unclear what they prey on.

Saprotrophs

A saprotroph is an organism that uses digestive enzymes on its prey before consuming it, examples include:

• Cradily ensnared its prey with its tentacles before dissolving it for consumption
• Malamar and Sliggoo release digestive enzymes on to their prey before swallowing them
• Pyukumuku ejects its stomach from its mouth to grab and swallow its unknown prey whole

Detritovores

Species that get their nutrients from dead matter, including:

Parasitism

Refers to one species gains sole benefit at the direct and harmful expense of another. Examples include:

• Shellder feeds off of Slowbro's tail and food scraps, its poison is known to have a hallucinogenic effect
• Togedemaru steal Elekid's stored electricity supply
• Morelull tap into tree roots to extract energy

Competition

Competition between species can result in both being negatively impacted due to scarce resources, such as:

Human-Pokémon interactions

• Machop line, Gigalith, Excadrill, Timburr line are staples on construction sites
• Goldeen swim up streams and waterfalls, marking the beginning of spring. And Seaking lay their eggs in autumn. Similarly, Deerling and Sawsbuck migration and fur colour was used to predict the season.
• Chansey and Blissey are capable of laying eggs that are delicious and nutritious for humans and Pokémon.
• Certain Grass-type Pokémon such as Grotle, Snover and Tropius are able to grow edible nuts, berries and other fruit on their bodies. While Pokémon always enjoy these, the same cannot always be said for humans. The food that Grotle produces, for example, tastes bad to humans.
• Shuckle are well known for storing certain kinds of Berries in their shells, which slowly ferment into juice. The juice has special properties if consumed by humans and Pokémon, and, as demonstrated in the anime episode A Better Pill to Swallow, can be used to make love potion
• The fungus of Paras and Parasect can be used to make potions and medicine.
• Golem sheds its shell once per year, this shell becomes nutrient rich soil ideal for farming
• Mareep's fleece is processed into clothing
• Miltank produce Moomoo Milk which can be bought in the games and used as a healing item. It is stated in both the games and the anime to be both nutritious and delicious. It is also stated in the games that it is said kids who drink it will become hearty, healthy adults. In the anime, groups of Miltank are often kept to produce the milk not only for drinking, but also for the milk used to make dairy products as part of a business. In A Race for Home!, it has been shown that milk made by Skiddo are also used to make dairy products such as cheese and soft-serve ice cream
• Corsola horns are used by craftsmen to make sculptures and ornaments
• Sharpedo's dorsal fin and Basculin, Wishiwashi are considered tasty dishes
• Tropius grow fruit under its neck, the fruit is enjoyed by people and Pokémon alike
• Combee and Vespiquen gather nectar from flowers to produce Honey which is savored by various species of Pokémon, such as Mothim who steal it
• Rampardos' hardened steel skull was used as a helmet by ancient people
• Magmortar's flames were used for metal processing in factories
• Petilil and Phantump leaves make a medicinal teas
• Cottonee's cotton is used for the stuffing of pillows and beds
• One of Boldore’s orange crystal fragments would provide enough fuel for a hundred dump trucks.
• Darumaka's dropping were used as heat packs for people in frigid areas
• Cinccino's fur oil can be used to treat skin conditions
• Alomomola is highly regarded by fisherman as its secreted mucus can heal open wounds
• Sigilyph and the Golett line were associated with protecting ancient people from dangers
• Clauncher, Clawitzer and Crabrawler claw meat are considered a delicacy
• Toucannon are considered a symbol of good luck and are often brought to weddings
• Ribombee pollen puffs are sometimes sold as nutrition
• Mudsdale has been used for hauling large loads and its saliva plus mud was used to create the walls of old houses
• Diluted Bounsweet sweat can be made into a fruit juice
• Comfey flowers and scent are used in beauty and medicinal products
• Hakamo-o's shed scales can be moulded and processed to make pots and pans

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