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.

Crabs

 * Cancix
 * Octopunch
 * Rampage (BW) / Shokaract
 * Razorclaw (BW) / Rockbuster
 * Razorsharp

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

Tyrannosaurus
Generation 1/Beast Era
 * Grimlock (G1) / Overkill
 * 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 2 / Rapticon
 * Razor Claw

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)
 * Savage
 * Snapdragon

Robots in Disguise
 * Megatron (RID) (partially)

Unicron Trilogy
 * Scourge (Cybertron)

Bats

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

Bears (genus Ursus)

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

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)
 * 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

Rhinos
Generation 1/Beast Era
 * Headstrong
 * Ramhorn
 * Rhinox
 * Stranglehold
 * Greatshot (partially)
 * Rhinobreast

Unicron Trilogy
 * Backstop
 * Rhinox

Gorillas (Gorilla gorilla)
Generation 1/Beast Era
 * Apeface
 * Apelinq
 * Beastbox
 * Optimus Primal
 * Primal Prime

Unicron Trilogy
 * Optimus Prime

Go-Go-GoBots
 * Beast-Bot
 * Gorillabot