Gold fish is one aquatic animal with scales.
It is the Platypus.
there is no fish with a horn, but if you think narwhal it is a aquatic mammal
Well there are many aquatic birds so ducks, geese, swans, etc...
the dolphin is the most gentle aquatic animal
It is an aquatic plant that is a rapid grower
Yes semi aquatic means half land animal half aquatic animal
The Narwhal
Narwhals
unicorn
as a noun it means an aquatic plant or animal, especially one suitable for a pond or aquarium as a adjective it means in relation to water
Ned