Fish

Animal

A fish is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Wikipedia

Term for young: alevin, fingerling, and fry

Lifespan: Siamese fighting fish: 2 – 5 years, Common carp: 20 years, Northern pike: 10 – 15 years, and more

Collective noun: school and shoal

Domain: Eukaryota

Kingdom: Animalia

Representative species