Dugtrio is a set of Diglett triplets sharing a single body. Each head has brown skin, black eyes, and a large, round, pink nose. Dugtrio's three heads think the same thoughts and act cooperatively, though on rare occasions may fight over which head gets to eat first. In order to make burrowing easier, each head will bob up and down to loosen the soil. Dugtrio can tunnel under the earth at 60 mph (100 km/h) to a depth of 60 miles (100 kilometers), triggering tremors and earthquakes. It is capable of burrowing endlessly. Dugtrio lives in tunnels and caves under the earth. As shown in the anime, it sometimes lives in hollow trees in forests. It maintains the soil and plants trees to revitalize wooded areas. For a brief time, Fissure was its signature move. Druddigon is a natural predator of Dugtrio.
Alolan Dugtrio is nearly identical to its counterpart, except each head has a mop of golden hair formed from modified whiskers. The left head has a bob-cut, the right head has curly "shoulder-length" hair, and the last one has flowing hair that touches the ground behind it. This hair is made out of thin, yet heavy strands of steel and it grows slowly and continuously throughout Alolan Dugtrio's life. The hairs act as sensors that can detect vibrations from long distances underground. The Alolan Dugtrio is regarded as a feminine deity of the earth and taking its hairs is thought to bring bad luck.
In Dig Those Diglett!, multiple Dugtrio worked with Diglett to plant trees in a forest.
In The Underground Round Up, Poncho used a Digtrio and multiple Diglett to rid a town of Electrode. Poncho only used his Dugtrio to get rid of Team Rocket's Electrode Eliminator.
In Got Miltank?, two Dugtrio brought Meowth and Ash's Cyndaquil to a Pokémon-exclusive oasis after they got hurt and lost in the desert.
In Balance of Power, multiple Dugtrio were disturbed by Norman's Slaking's Earthquake. The nearby Jessie kicked a rock at them, angering them and prompting them to chase after her, James, and Meowth.
In Shocks and Bonds, Katie used a Dugtrio against Ash during the Ever Grande Conference. Dugtrio defeated Pikachu, but was then defeated by Glalie's powerful Ice Beam.
In The Green Guardian, Solana used her Capture Styler to receive a Dugtrio's assistance in building an underground tunnel that Ash and his friends could use to bypass vines and get to Celebi.
In Pokémon Mystery Dungeon: Explorers of Time & Darkness and Pokémon Mystery Dungeon: Explorers of Sky - Beyond Time & Darkness, multiple Dugtrio were sentries for the Wigglytuff Guild.
In Making Friends and Influencing Villains!, two Dugtrio helped befriend a Shiny Phantump.
In Getting the Band Back Together! DJ Leo owns an Alolan Dugtrio, having named the three heads Jessica, Ashley, and Michael. In The Professors' New Adventure!, it attended the wedding of Professor Kukui and Professor Burnet with DJ Leo. It reappeared again in Battle Royal 151!.
In How Are You Gonna Keep 'Em Off of the Farm?, a Dugtrio was the leader of a group of Diglett that were eating the crops on Laxton Farm. Goh eventually caught it and used it in a battle against Team Rocket, sending them blasting off. Goh then gave Dugtrio to Laxton after realizing Dugtrio could help cultivate soil.
In Pikachu's Vacation, a Dugtrio was at the Pokémon Theme Park.
A Dugtrio appeared in Clefairy Tales.
Multiple wild Dugtrio appeared in Pikachu's Rescue Adventure.
In Pikachu & Pichu, a Dugtrio lived in Big Town.
In Beauty and the Breeder, a Pokémon Breeder's Dugtrio participated in a Pokémon breeding competition.
In Right On, Rhydon!, Pietra uses three Dugtrio for her digging project, specifically for the task of carrying large rocks.
A Dugtrio appeared in The Legend of Thunder!.
A Dugtrio appeared in A Six Pack Attack!.
In The Ribbon Cup Caper, a Dugtrio was at the ship's Pokémon Center.
Multiple Dugtrio briefly appeared in Giratina and the Sky Warrior.
In One Team, Two Team, Red Team, Blue Team!, the Pokémon Summer Academy lent a Dugtrio to Conway for the first leg of the Pokémon Triathlon.
In A Rivalry to Gible On!, multiple Dugtrio lived at Mt. Shady.
In Meloetta's Moonlight Serenade, a Dugtrio watched Meloetta's concert.
Eight Dugtrio appeared in Alola, Kanto!, with two of them belonging two Trainers, and one being an Alolan Dugtrio.
In Dewpider Ascending!, an Alolan Dugtrio popped up from the ground underneath Dewpider and bounced it on its head, sending it flying into a tree.
In Showering the World with Love!, an Alolan Dugtrio was leaving Hokulani Observatory just as Ash, his classmates, and Professor Kukui arrived.
A Trainer's Alolan Dugtrio appeared in A Young Royal Flame Ignites!.
A Dugtrio appeared in flashbacks in Enter Pikachu! and Dreams Are Made of These!.
In Working My Way Back to Mew!, Goh attempted to catch a Dugtrio but failed.
In That New Old Gang of Mine!, Goh ended up chasing an Alolan Dugtrio after mistaking its burrowing through the ground for a Grubbin that he was trying to catch.
||Dugtrio. Formed when three Diglett combine. This Pokémon is able to tunnel deep beneath the earth's surface.
||Dugtrio, Alola Form. The Mole Pokémon. A Ground and Steel type. They are revered in Alola as the reincarnation of a planet guardian and its siblings. Its golden hair provides protection.
||Goh's Rotom Phone
||Dugtrio, the Mole Pokémon. A Ground type, and the evolved form of Diglett. These three make an excellent team. When Dugtrio moves through soil, the soil becomes extremely aerated, which is excellent for farming. It has been reported to be quite useful for agriculture.
An Alolan Dugtrio briefly appeared in GOTCHA!, under the ownership of Molayne.