| Fish with a broad, flat head; large dorsal and anal fins placed far back on body; rounded tail, three rays in pelvic fin; animal (vertebrate).
Heavily vegetated lowland ponds and streams
Copepods, water fleas, insect larvae, mollusks, segmented worms, algae
River otters, mink, loons, grebes, terns, humans
The antifreeze in blackfish blood allows them to tolerate icy cold water and survive partial freezing.
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