A fish is any of a large group of cold-blooded, finned, aquatic vertebrates that respire by passing oxygenated water over gills. NO fish can breathe through lungs and ALL fish have wet scaly skin
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The common name for mud fish is snakehead fish.
I really dont know
lay their eggs in water and both are cold-blooded
Common galaxias fish typically feed on small aquatic insects, crustaceans, algae, and detritus. They are known to be opportunistic feeders and will consume whatever food source is available in their environment.
They eat small fish, crustaceans, mollusks, aquatic insects like leeches and frogs.