To those suggesting that the Tardigrade lacks aggression and offensive ability...
"Though they may be little, they are fierce! The tardigrade’s mouth is a serious weapon, its dagger-like teeth used to spear algae and even other small animals."
See, I like to think of this competition as a...
I third the Tardigrade.
Pound for pound, this thing is a beast and can literally fight it's rivals ANYWHERE!
Would like to see that pathetic little shrimp fight in the dessert...