I don't know, I've touched a Clydesdale and a camel that were probably really close in height and weight. But I'm not sure which one was technically larger. I didn't touch them on the same day, though. My life will never be that interesting.

Yo momma (jk, probably just a big dog)

A horse

I guess technically an elephant or giraffe.

Cuthulho.

an elephant I guess?

Human.

I might have ridden an elephant once, I'm not sure, I know I was at a place where you can do that. I've definitely ridden horses.

Scottish Highland Cattle.

Dolphin?