Sharks can swim 70 km/h (44 mph). Even Killer Whales reach those speeds. The fastest shark species, the Mako, can swim at 96 km/h (60 mph). Swordfish reach 64 km/h (40 mph), Marlin 80 km/h (50 mph) and the fastest fish of all, the Sailfish, 109 km/h (68 mph).
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