The fastest land animal is the cheetah, which can reach speeds of 100 km/h.
The fastest aquatic animal is the orca, which reaches speeds of 55 km/h.
The fastest bird in flapping flight is the white-throated spiny-tailed swift, which reaches speeds of 170 km/h.
There's no point in commenting about cheetahs and marlins reaching 120 km/h, because it's absolutely not true. And above all, don't mention the peregrine falcon, which reaches 390 km/h, because I too can do 250 km/h in free fall. And I have the aerodynamics of a chair. Thanks.