Popular beast alternate modes
Earth is a planet literally teeming with organic life forms. Millions of genera, of all shapes and sizes, inhabit the planet, and a Cybertronian might scan any of them for a potential alternate mode. Some genera, however, are extremely popular with Cybertronians.
MediaWiki has certain requirements for an animal to be listed here. There must be at least three unique toy molds (or in-fiction appearances, in the case of non-toy bodies/characters) that share the beast mode. There must also be at least one unique character per mold—a single character getting numerous revamps in similar bodies over the years would not count as a "popular mode."
Each mold is listed on its own line, with all different-character decoes/retools on the same line. The list is (more or less) organized in chronological order of toy release or fictional appearance.
- See also: Popular Earth vehicle alternate modes, Non-vehicle non-beast alternate modes, General Motors
Arthropods
Arachnids
Spiders
Black Widow Spiders (Latrodectus mactans)
- Blackarachnia (BW)
- Arcee (G1)
- Crystal Widow
- Blackarachnia (Animated)
- Airachnid (Prime) (robot mode motif)
- Airachnid (G1)
Scorpions

- Scorponok (G1) / BlackZarak
- Pincher (G1)
- Scorpulator
- Double Punch
- Scorpia
- Scorponok (BW) / Sandstorm (BW) / Scorponok (BWSG)
- Quickstrike (BW) (partially)
- Poison Bite
- Scorponok (Energon) / Dark Scorponok
- Scorponok (Movie)
- Zori / Sting (Adventure)
- Sandsting
- Scorponok (WFC) / Paralon (RID)
Crustaceans
Crabs

- Cancix
- Octopunch
- Rampage (BW) / Shokaract
- Razorclaw (BW) / Rockbuster
- Razor-Sharp
- Crab spy
- Gabu
- Gra
- Clampdown (RID) / Clawtrap (robot mode motif)
- Crabby Grabby
Insects
Stag beetles (family Lucanidae)

Scarabs and rhinoceros beetles (family Scarabaeidae)
- Bombshell / Bombshell (Shattered Glass) / Salvo
- Barrage (Insecticon)
- Ram Horn / Motorarm (BWII)
- Needler
- Insecticon (Energon)
- Hardshell / Bombshock (Prime) / Razorhorn
- Bido
- Bombshell (Adventure)
Grasshoppers and locusts (order Caelifera)
- Kickback (G1) / Kickback (Shattered Glass) / Shothole / NBE 125
- Ransack (G1)
- Scourge (BW)
- Kickback (FOC)
- Kickback (RID) (robot mode motif)
- Spinhead (robot mode motif)
Wasps and ants (order Hymenoptera)

- Buzz Saw (BW) / Waspinator (BW) / Starscream (G1) Transformers: Beast Wars Transmetals (N64)
- Dirgegun
- Injector / Latolata (partially)
- Inferno (BW) / Antagony (BW)
- Scavenger (BW)
- Buzzer-Bot / Billy (Go-Bots)
- Waspinator (Animated) / Inferno (Animated) / Antagony (Animated)
- Storm Rider / King Waruder / Paralyzer / Bug Bite II / Parasite / Skywasp / Mudfighter / Waspinator (Shattered Glass)
- Venin / Buzz Saw (AOE) / Crusher (Diaclone) / Buzzer (Diaclone) / B-Navi / Ripper (Diaclone) / NAVI-Q / Thrasher (Diaclone) / Daros / Buggy
Mantises (order Mantodea)
- Manterror / Mantis
- Buzzclaw (BW) / Buzzclaw (G1) / Dirge (Timelines) / Virulent Clone / Repugnus (G1) (partially)
- Magi / Shou / Scalpel (ROTF)
Dragonflies (order Odonata)
- Jetstorm (BW) / Tonbot
- Sky Shadow (BW) / Drancron (partially)
- Dobo
Mythical creatures

- Mechatron
- Megatron (BW)
- Cryotek (RID) / Cryotek (Universe)
- Doublecross
- Deathsaurus (Victory) / Deathsaurus (SG)
- Likely Esmeral / Esmeral (SG)
- Galvatron (BWII) / Unicron
- Nightscream (Classics) / Dragoyell / Brimstone (Universe) / Sling (AoE)
- Savage
- Sinnertwin (G1) / Sinnertwin (SG)
- Snapdragon
- Hun-Gurrr
- Megatron (RID)
- Scourge (Cybertron) / Trypticon (Classics) / Bruticus (RID)
- Predaking (Prime) / Dragotron
- Ripclaw / Ser-Ket / Bakudora
- Skystalker (Prime) / Backbite (Prime) / Skylynx / Judora
- Lazerback / Vertebreak (Prime) / Gaidora
- Hun-Gurrr (Prime) / Dorara
- Twinstrike (Prime) / Garara / Thrash
- Blight (Prime) / Burara / Gorge
- Windrazor (Prime) / Divebomb (Prime) / Barara / Rupture
- Hydrax
- Optimus Exprime
- Dragonus / Windra / Dragonblaster
- Flamesnort (robot mode motif)
- Drake
- Wingblaze / Freezer Burn
- Knight Watch Bumblebee
- Crashbash / Clobber / Overboard / Butla (partner drone)
- Steelbane / Skullitron
- Dragonstorm
- Rootwing / Smerg the Sad
- Sugar Breath / Milton
- Sour Wing / Aday
- Heatwave (Rescue Bots) (Two-Headed Dragon)
Fishes
Chondrichthyes
Rays
Manta Ray (Manta birostris)

Sharks
Hammerhead shark (genus Sphyrna and others)
- Cybershark / Hellscream / Overbite (G1)
- Air Hammer (partially)
- Hammerstrike (BM) / Sharkticons Betrayal
- Hammerstrike (RID) / Ragebyte (robot mode motif)
- Hammerbyte
Reptiles
Crocodylians

American alligator (Alligator mississippiensis)
- Skullcruncher (G1)
- Megatron (BW) / Albitron / Megalligator
- Terragator (partially)
- Soundwave (BW)
- Krok
- Gatoraider
- Dai
- Razorgrille (RID) / Skullcruncher (RID) (robot mode motif)
Lizards
- Geckobot
- Sky Shadow (BW) / Drancron (partially)
- Buzzclaw (BW) / Buzzclaw (G1) / Dirge (Timelines) / Virulent Clone / Repugnus (G1) (partially)
- Wreckloose (Cybertron) / Wreckloose (TF 2010)
- Iguanus (BW) / Crazybolt
- Reptilion
- Zad (Prime) / Zad (G1)
- Crazybolt (RID) (robot mode motif)
- Slicedice (robot mode motif)
Snakes
Cobras (genus Naja and others)
- Colada
- Quickstrike (BW) (partially)
- Night Viper (even though vipers aren't cobras)
- Cobrabreast (presumably)
- Gob (Prime) / Gob (G1)
- Vertebreak (RID) (robot mode motif)
- Slitherfang / Fangtron Giza
Turtles
Snapping turtles (genera Chelydra and Macroclemmys)
- Snaptrap / Turtler / Halfshell
- Snapper
- Terragator (partially)
- Dado (Prime)
Dinosaurs
Ankylosaurs
- Gairyu (pretender shell only)
- Bazooka / Slapper
- Ankylosaurus drone
- Roughneck
- Scowl
- Scale the Shield-Bot
Brontosaurus[1]
- Sludge (G1)
- Zaur (Headmasters) / Uruaz / Zauru
- Rairyu (pretender shell only)
- Sludge (SG)
- Zaur (Animated)
- Sludge (FOC)
- Slog (AOE)
- Heatwave The Rescue Dino-Bot (RB)
Stegosaurus

- Snarl (G1)
- Slugfest (G1) / Slugfest (Shattered Glass)
- Doryu (Victory) (pretender shell only)
- Saberback / Striker / Snarl (Dinobots)
- Hacksaw
- Doryu (SG)
- Snarl (FOC)
- Snarl (AOE)
- Chase the Rescue Dinobot (RB)
Styracosaurus
Triceratops
- Slag (G1)
- Kakuryu (Victory) (pretender shell only)
- Guiledart / Triceradon (BM) / Triceradon (Dinobots)
- Knockdown (Classics) / Ironlunge / Stockade (Universe 2008) / Triceradon (DOTM) / Thunderlips
- Snarl (Animated) / Slug (Adventure)
- Slug (FOC)
- Slug (AOE)
- Boulder the Rescue Dinobot
- Tricerashot (robot mode motif)
- 'Tops
- Trisourtops / Tricitrustops
Tyrannosaurus

- Grimlock (G1) / NBE 08
- Overkill (G1) / Overkill (SG)
- Goryu (Victory) (pretender shell only)
- Megatron (BW) / T-Wrecks
- Trypticon (G1) / Gigastorm
- Tyrannitron
- Terrorsaur (Classics) / Gnashteeth / Ransack (Universe 2008) / Dualor (DOTM) / Ivan
- Predacon (Armada) / Preditron
- Grimlock (Energon)
- Megatron (Cybertron) / Cindersaur / Megatron (BWSG)
- Grimlock (Animated)
- Grimlock (SG)
- Goryu (SG)
- Grimlock (FOC)
- Grimlock (AOE)
- Optimus Primal (Rescue Bots)
- Crashbash / Clobber / Overboard / Butla (partner drone)
- Sharp-T
- Grimlock (Cyberverse)
- Bogusaurus Rex / Stinkosaurus Rex / Greeny Rex / Bum Sprout
- Javasaurus Rex / Roarista
- Hoist (RB) Big Wheels
Velociraptor
- Dinobot / Grimlock (G1) / Thrustor / Grimlock (Dinobots)
- Dinobot II / Rapticon
- Razor Claw
- Reptron (Go-Bots) / Dino-Bot / Greg (Go-Bots) / Reptron (Universe)
- Slash (AOE)
- Dinobot (BWSG)
- Velocirazor
- Bumblebee (WFC)
- Slash (Generations) / Cindersaur
- The Raptoricons
- Lance the Raptor-Bot
Pterosaurs
Pteranodon
- Swoop (G1)
- Graphy
- Yokuryu (pretender shell only)
- Terrorsaur / Fractyl / Lazorbeak / Hydra / Terranotron (Dinobots) / Terrorsaur (BWSG)
- Terranotron (BM) / Terrorsaur (Armada) / Ravenus
- Reptix / Windrazor (Universe) / Rav (DOTM) / Paulie
- Swoop (Energon)
- Brimstone (Cybertron) / Swoop (Shattered Glass)
- Swoop (Animated) / Swoop (Adventure)
- Swoop (WFC)
- Nosedive
- Blades The Rescue Dino-Bot (RB)
- Pterry
- Ptero
- Pteraxadon / Terror-Daxtyl / Enerax
Birds
Condors (genera Vultur and Gymnogyps)
- Laserbeak (G1) / Buzzsaw (G1) / Garboil (G1) / Sundor / NBE 57 / Laserbeak (Shattered Glass) / Buzzsaw (Shattered Glass) / Buzzsaw (ROTF)
- Silverbolt (BW)
- Laserbeak (Cybertron) / Hell Buzzsaw / Blockrock
- Booster X10 / Night Beat 7
- Laserbeak (Animated) / Buzzsaw (Animated) / Garboil (Animated) / Sunder (Animated)
- Laserbeak (DOTM) (robot mode motif)
Eagles (order Accipitriformes)
- Divebomb (G1)
- Squawktalk (G1) / Squawktalk (SG)
- Eaglebreast
- Silverbolt (G1) / Skywarp (BWII)
- Silverbolt (BW) / Windrazor (BW) (partially)
- Screech
- Dreadwing (Classics) / Wedge Shape / Longview (Universe) / Divebomb (SG)
- Talon (RB)
Hawks and falcons (order Falconiformes)

- Hawkbreast
- Wingspan
- Doubledealer / Doubleclouder
- Airazor (BW)
- Tigerhawk / Razorclaw (Universe) (partially)
- Air Hammer (partially)
- Sights
- Airazor (Armada)
- Divebomb (Energon) / Blackout (Energon)
- Baru
Owls (order Strigiformes)
Synapsids
Dimetrodon
Mammals
Bats

- Kōmoribreast
- Mindwipe
- Nightscream (BM)
- Batscout / Nightshriek / True One
- Noctorro (partially)
- Optimus Primal / Onyx Primal
- Ratbat (G1) / Ratbat (Shattered Glass) / Wingthing (G1)
- Skar / Clouder
- Sonar (BW)
- Soundwave (BW)
- Megatron (RID)
- Ratbat (Animated) / Wingthing (Animated)
- Hades
- Ratbat (ROTF)
- Convobat
- Nightstrike
Rabbits
Bovids

- Tantrum
- Noctorro (partially)
- Horri-Bull
- Longhorn
- Bonecrusher (BW) / Bighorn
- Bisonbreast
- Ramulus
- Balo
- Bolt
- Terrashock / Overhead (robot mode motif)
- Smashdown (robot mode motif)
Canines
Wolves / Dogs (Canis lupus)

- Carnivac
- Wolfang (Maximal) / Wolfang (Predacon) / K-9 / Max-B
- Weirdwolf (G1)
- Sixshot
- the Cub
- Silverbolt (BW) / Windrazor (BW) (partially)
- Quickstrike (BM)
- Noble
- Overbite (Classics) / Gredator / Razorclaw (Shattered Glass) / Scavenger (Universe 2008)
- Bruticus (RID)
- Snarl (Cybertron)
- Preditron
- Steeljaw (DOTM)
- Servo (RB)
- Growl (RB)
- Steeljaw (AOE)
- Sawback
- Fireplug
- Sergeant Slobber
- Steeljaw (RID) / Phantomjaw (robot mode motif)
- Silverhound (robot mode motif)
- Clipshade (robot mode motif)
- Thunderhowl
Elephants/Mammoths
- Shuffler
- Ironhide (G1) / Santon
- Torca (BW) / Elphaorpha (partially)
- Big Convoy / Black Big Convoy / Nemesis Prime (Universe 2003) / Ultra Mammoth
- Galvatron (RID) / Deathsaurus (Victory)
- Ozu (Prime) / Geki
Equines
- Battle Unicorn / Magna Stampede
- Dropshot (Armada) / Dropshot (Shattered Glass)
- Mach Kick
- Strada
- Unilla Icequeencone / King Candyhooves / Sugar Saddle
Felines
Jaguars (Panthera onca)
- Ravage (G1) / Glit / Howlback (G1) / Ravage (Shattered Glass) / Howlback (BB)
- Panther
- Jaguarbreast
- Battle Ravage / Command Ravage
- Beast-Bot II
- Ravage (ROTF)
- Scratch / Razorpaw (robot mode motif)
Tigers (Panthera tigris)

- CatSCAN
- Rampage (G1)
- Snarl (Classics) / Apexus / Snow Cat (Universe) / Rampage (Shattered Glass) / Catilla (DOTM)
- Tigerbreast
- Toraizer
- Tigatron
- Tigerhawk / Razorclaw (Universe) (partially)
- Bantor (BW) (partially)
- Tigertron / George
- Stripes
Lions (Panthera leo)
- Angela / Dark Eggleo / Eggleo
- Lio Convoy / Black Lio Convoy
- Lionbreast
- Leonicus
- Prowl (G1) / Lio Junior
- Razorclaw (G1)
- Lionizer (G1)
- Snarl (BM) / Alpha Trion (G1)
- Lione
- Steeljaw (G1) / Steeljaw (SG) / Nightstalker (G1)
- Under-3
- Victory Leo
- Leobreaker / Nemesis Breaker
- Steeljaw (Animated) / Lionizer (Animated)
- Thundertron / Go Prime / Alpha Trizer
- Valor the Lion-Bot
- Hunter the Lion-Bot
- Dazzlestrike
Cheetahs (Acinonyx jubatus)
- Cheetor (BW) / Shadow Panther / Nightprowler / Cheetor (BWSG)
- Che
- Cataclysm (BW) / Cheetor (Armada)
- Cheetor (Go-Bots) / Chuck
- Swift (RB)
- Cheetor (Cyberverse)
Primates
Gorillas (Gorilla gorilla)
- Apeface
- Beastbox (G1) / Beastbox (SG)
- Optimus Primal (BW) / Apelinq / Optimus Primal (BWSG)
- Primal Prime
- Gorillabot / Max (Go-Bots) / Beast-Bot / Gorilla-Bot
- Optimus Prime (Cybertron)
- Beastbox (ROTF)
- Oilmaster / Optimus Prime (pretender shell only)
- Silverback the Gorilla-Bot
- Rarigo / Ape X Arms
- Chilla Gorilla / Abominable Soundman / Tranquillabeast
- Grrr'illa Grimes / Flood Jug
- Snorg the Conquerer
Humans (Homo sapiens)

- Cloudburst / Phoenix (Masterforce) (pretender shell only)
- Landmine (G1) / Lander (pretender shell only)
- Waverider / Diver (Masterforce) (pretender shell only)
- Groundbreaker (pretender shell only)
- Sky High (Pretender) (pretender shell only)
- Splashdown (pretender shell only)
- Metalhawk (Masterforce) (pretender shell only)
- Doubleheader (pretender shell only)
- Pincher (G1) (pretender shell only)
- Stranglehold (pretender shell only)
- Bumblebee (G1) (pretender shell only)
- Grimlock (G1) (pretender shell only)
- Jazz (G1) (pretender shell only)
- Starscream (G1) (pretender shell only)
- Crossblades (G1) (pretender shell only)
- Skyhammer (G1) (pretender shell only)
- Vroom (G1) (pretender shell only)
- Simon Furman (In a Titan magazine letters column, Starscream joked that Furman was a Maximal).
- Michael Bay (Hasbro jokingly produced a toy of him, included as an "easter egg" on the live-action movie DVD.)
- Sari Sumdac (Animated)
- Alice
- Reflector (G1) (pretender shells only)
- The new lab assistant
- Sovereign / G.B. Blackrock (2005 IDW continuity only)
- Quintessa
- Overlord (Masterforce) (2005 IDW continuity only)
Rhinos
- Headstrong (G1)
- Ramhorn (G1) / Ramhorn (SG)
- Stranglehold
- Greatshot
- Hornbreast
- Top-Heavy
- Fire Beast
- Rhino (BW)
- Rhinox (BW)
- Rhinox (Armada)
- Backstop (Cybertron) / Backstop (TF 2010)
- Ramhorn (Animated)
- Rumble (ROTF)
- Zamu
- Transit (RID) (robot mode motif)
- Transit (G1) (robot mode motif)
Ursines
Bears (genus Ursus)
- Chainclaw (G1)
- Grizzly-1 / Polar Claw / Survive
- Icebird
- Kuma Kinkin
- Bear Transformer
- Sequoia
- Polarclaw (robot mode motif)
- Cuddle Wuddle (teddy bear)
Whales
- Torca (BW) / Elphaorpha (partially)
- Orcanoch
- Tidal Wave (G1) (2005 IDW continuity only)
References
- ↑ Due to the changing classification status of various fossils, these molds may have been described as either Brontosaurus or Apatosaurus at the time of release.

