Popular beast alternate modes

When arriving on Earth, there are millions of animal species a Cybertronian might scan for an Alternate mode. Some genera, however, are extremely popular with Cybertronians.

Arthropods

Crabs

• Cancix
• Octopunch
• Rampage (BW) / Shokaract
• Razorclaw (BW) / Rockbuster
• Razor-Sharp

Scorpions

Generation 1/Beast Era

• Double Punch (G1)
• Pincher
• Poison Bite
• Scorpia
• Scorponok (G1) / Black Zarak
• Scorponok (BW) / Sandstorm (BW) / Double Punch (BW)
• Scorpulator

Unicron Trilogy

• Scorponok / Dark Scorponok

Transformers (2007)

• Scorponok

Dinosaurs

Tyrannosaurus

Generation 1/Beast Era

• Grimlock (G1) / Overkill (in his Classics body)
• Megatron (BW) / T-Wrecks
• Trypticon

Unicron Trilogy

• Grimlock
• Megatron
• Predacon

Animated

• Grimlock

Triceratops

Generation 1/Beast Era

• Slag
• Guiledart / Triceradon
• Knockdown (Classics)

Animated

• Slag

Stegosaurus

Generation 1/Beast Era

• Snarl
• Slugfest
• Saberback / Striker

Velociraptor

Generation 1/Beast Era

• Dinobot / Grimlock / Thrustor
• Dinobot II / Rapticon
• Razor Claw

Pterosaurs

Pteranodon

Generation 1/Beast Era

• Swoop (G1)
• Terrorsaur / Fractyl / Terranotron (Dinobots)
• Terranotron (BM)

Unicron Trilogy

• Swoop (Energon)

Animated

• Swoop (Animated)

Dragons

Generation 1/Beast Era

• Megatron (BW) / Cryotek
• Deathsaurus (partially)
• Galvatron (BWII) / Unicron
• Nightscream (Classics) / Dragoyell
• Savage
• Snapdragon

Robots in Disguise

• Megatron (RID) (partially)

Unicron Trilogy

• Scourge (Cybertron)

Mammals

Bats

• Mindwipe
• Nightscream
• Optimus Primal / Onyx Primal
• Ratbat
• Skar / Clouder
• Sonar
• Soundwave (Mutant)
• Batbreast

Carnivores

Bears (genus Ursus)

• Chainclaw
• Grizzly-1 / Polar Claw / Survive
• Icebird
• Kuma Kinkin

Canines

Wolves / Dogs (Canis lupus)

Generation 1/Beast Era

• Carnivac
• Wolfang (Maximal) / Wolfang (Predacon) / K-9 / Max-B
• Weirdwolf
• Sixshot (partially)

Unicron Trilogy

• Snarl (Cybertron)

Felines

Jaguars (Panthera onca)

• Ravage
• Panther
• Battle Ravage
• Jaguarbreast

Tigers (Panthera tigris)

• Rampage (G1) / Glit / Howlback
• Snarl (Classics)
• Tigerbreast
• Toraizer
• Tigatron / Tigerhawk

Lions (Panthera leo)

• Angela / Dark Eggleo / Eggleo
• Lio Convoy
• Leobreaker / Nemesis Breaker
• Leobreast
• Leonicus
• Prowl (G1) / Lio Junior
• Razorclaw (G1)
• Snarl (BM) / Alpha Trion
• Steeljaw
• Under-3
• Victory Leo

Pumas (Puma concolor)

• Pounce
• Quickswitch (partially)

Cheetahs (Acinonyx jubatus)

• Cheetor
• Cataclysm
• CatSCAN (indeterminate)

Sabertoothed cat (Smilodon sp.)

• Catilla

Odd-Toed Ungulates

Rhinos

Generation 1/Beast Era

• Headstrong
• Ramhorn
• Rhinox
• Stranglehold
• Greatshot (partially)
• Rhinobreast

Unicron Trilogy

• Backstop
• Rhinox

Primates

Gorillas (Gorilla gorilla)

Generation 1/Beast Era

• Apeface
• Apelinq
• Beastbox
• Optimus Primal
• Primal Prime

Unicron Trilogy

• Optimus Prime

Go-Go-GoBots

• Beast-Bot
• Gorillabot
  
  
  From Teletraan I: The Transformers Wiki, a Wikia wiki.