What animal class is the salmon in?

Do any hamerheads sharks swim in the Alaskan waters? Do snails and goldfish make good friends? How long do seahorses take to hatch? Is your platy sick or pregnant if she is resting on the gravel by the heater? What eats shark eggs? How many megalodons are there? Why does my seahorse lay at the bottom of the tank but is still alive? Why was the journey west difficult and dangerous for white people? What is the difference between portuguese sapateira and santola? Is there a megalodon still out there? Why are seahorses extinct? How does the great white shark protect its self? What tools do you use to take care of hermit carbs? Which element placed in water prevents tooth decay? What is a sea-bass habitat? What does a angelfish look like in Animal Crossing? Are fish domestic animals or wild animals? What is the Caribbean Reef Shark lifespan? Why is it dangerous to put a freshwater fish in a salt water aquarium? What is the difference between a fish and a guitar?