diff --git a/words/scales.txt b/words/scales.txt
new file mode 100644
index 000000000..019ec434f
--- /dev/null
+++ b/words/scales.txt
@@ -0,0 +1,149 @@
+lizard
+crocodile
+snake
+dragon
+catfish
+bass
+salmon
+tuna
+hammerhead
+eel
+carp
+trout
+mahi
+snapper
+bluegill
+sole
+cod
+triceratops
+edmontosaurus
+saurolophus
+liberty
+justice
+pangolin
+turtle
+tortoise
+alligator
+butterfly
+iguana
+pineapplefish
+anaconda
+puffin
+cardassian
+acoustic
+alpha
+altered
+augmented
+bebop
+beta
+blues
+bushi
+byzantine
+freygish
+phrygian
+chromatic
+delta
+diminished
+dominant
+dorian
+enigmatic
+gamma
+harmonic
+heptatonic
+hirajoshi
+in
+cloud
+nominal
+ordinal
+interval
+ratio
+vernier
+lime
+scala
+insen
+istrian
+iwato
+jazz
+locrian
+major
+minor
+musical
+octatonic
+pentatonic
+pierce
+prometheus
+pythagorean
+symmetric
+tet
+tone
+tritone
+yo
+boa
+cobra
+richter
+kelvin
+celsius
+decibel
+beaufort
+mohs
+pauling
+python
+mamba
+alkaline
+climb
+moth
+eagle
+woodpecker
+morpho
+tautara
+anoles
+theopods
+owl
+frog
+lionfish
+morray
+clownfish
+ostrich
+stork
+egret
+map
+grue
+tiyanki
+broadnose
+basking
+goblin
+porbeagle
+chuckwalla
+tawny
+bramble
+kitefin
+agamas
+komodo
+bull
+monitor
+chameleon
+tegus
+gecko
+micro
+gray
+allosaurus
+glyptodon
+basilisk
+cordylus
+tegu
+sailfin
+mountain
+dinosaur
+goanna
+herring
+minnow
+perch
+coho
+lake
+arctic
+pumpkinseed
+salamander
+mudpuppy
+gopher
+chickadee
+ toad
diff --git a/words/tails.txt b/words/tails.txt
new file mode 100644
index 000000000..dd26fd864
--- /dev/null
+++ b/words/tails.txt
@@ -0,0 +1,211 @@
+orca
+shark
+capybara
+fox
+turtle
+fish
+dolphin
+armadillo
+hedgehog
+dhole
+dog
+cat
+jaguar
+cheetah
+leopard
+cougar
+lion
+tapir
+anteater
+monkey
+lemur
+snake
+scorpion
+jerboa
+opossum
+stingray
+colobus
+euplectes
+jay
+finch
+hawk
+beaver
+mouse
+moose
+alligator
+salamander
+tadpole
+giraffe
+astrapia
+pug
+greyhound
+foxhound
+bushbaby
+aardvark
+aardwolf
+pangolin
+porcupine
+genet
+springhare
+kangaroo
+koala
+ostrich
+dingo
+platypus
+camel
+horse
+echidna
+wombat
+crocodile
+whale
+narwhal
+humpback
+marmoset
+tucuxi
+beluga
+porpoise
+sparrow
+pigeon
+owl
+hummingbird
+robin
+starling
+manakin
+warbler
+penguin
+snowfinch
+broadbill
+finch
+thrush
+bishop
+swallow
+bittern
+caracara
+manx
+possum
+lemur
+deer
+peacock
+ratfish
+vulture
+rat
+takaya (star trek tng reference, type of orca used for navigation)
+skunk
+turtle
+tuxedo
+turkey
+elephant
+civet
+ainu
+husky
+akita
+alpaca
+spaniel
+terrier
+hare
+auroch
+axolotl
+bandicoot
+beagle
+beago
+collie
+beaver
+tiger
+liger
+rhino
+bobcat
+corgi
+dachshund
+giraffe
+elephant
+rhino
+bonobo
+cetacean
+bear
+hyena
+burmese
+lynx
+caracal
+goat
+chameleon
+chihuahua
+chimp
+cow
+cuscus
+pinscher
+dunker
+mau (egyptian cat breed)
+ermine
+feist
+spitz
+squirrel
+gerbil
+hampster
+panda
+gibbon
+flyingfox
+jackal
+macaque
+kinkajou
+lynx
+manatee
+mole
+ocelot
+otter
+panther
+pig
+prairiedog
+puma
+hippo
+marmoset
+quokka
+quoll
+bunny
+raccoon
+tamarin
+reindeer
+hyrax
+saiga
+sable
+serval
+spanador
+springbok
+tuatara
+dropbear
+vaquita
+wallaby
+walrus
+weasel
+corgi
+wolf
+zebra
+zonkey
+donkey
+mule
+zebu
+cuttlefish
+unicorn
+meerkat
+lynx
+jackalope
+heron
+fawn
+warthog
+drake
+badger
+zapus
+yak
+werewolf
+tahr
+fossa
+xerus
+raccoon
+centaur
+raptor
+long
+sheep
+quetzal
+wildebeest
+motmot
+coati
+drongo