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Dracovish could at least adapt to living in the wild by taking up territory along coastlines and in rivers and basically acting like a crocodile or hippo: bursts of speed to run down prey on land, then quickly running back with it to feed in the water.
Actually, both the Draco- fossils seem like they could survive without human caretakers.
Meanwhile Arctovish has severe breathing problems like a pug, and Arctozolt is too slow and its arms too small/embedded in fat to catch prey.