new opposite word game

I can't think of anything that goes with slither, and I hate snake LOL. I always seem to get into these games late, so I started a new one LOL ok......

whiskers:)

cat

dog

bird

well I could say tail for opposite of whiskers, but for bird I will say,
fish

Shrimp

whale

good answer, whale!

.....snail

Racehorse

car

plane

boat

bicycle?

bus

train