Animal expression

horse:

saddle — horse saddle (riding seat), to saddle a horse (to put the riding seat onto the horse)
shoe — protection on feet
ride — what a person does who sits on a horse's back

lion:

cub — baby lion
mane — large amount of hair around a male lion's head
roar — sound lions make

dog:

kennel — house for dogs
puppy — baby dogs
bark — sound dogs make

sheep:

wool — hair on sheep used for sweaters, blankets, etc.
lamb — baby sheep, meat of baby sheep
mutton — meat of mature sheep

elephant:

ivory — material tusks are made of
tusks — white protruding horn on both sides of mouth
trunk — long nose-like body part

bat:

blind — idiomatic saying "blind as a bat"
vampire — famous type of bat from "Dracula"
sonar — system bats use to navigate

cat:

nine lives — idiomatic saying "a cat has nine lives"
kitten — baby cat
meow — sound cats make

cow:

calf — baby cow
pie — cow excrement found in fields
leather — finished product made of cow hide for clothing

fish:

school — group of fish
scales — covering on fish
fin — part of body fish use to navigate

bird:

flock — group of birds
feather — covering on birds
beak — mouth of birds