Fastest animals

Due to physical constraints, fish may be incapable of exceeding swim speeds of . The larger reported figures below are therefore highly questionable: ==Amphibians==

} Film analysis of lion hunts gives maximum speeds of 90–97 km/h. The marathon world record is held by Kelvin Kiptum with a time of 2:00:35, corresponding to . In the absence of significant external factors, non-athletic humans tend to walk at about and run at about . Although humans are capable of walking at speeds from nearly 0 m/s to upwards of and running one mile (1.6 kilometers) in anywhere between 4–15 minutes, humans typically choose to use only a small range within these speeds. Compared to other land animals, humans are exceptionally capable of endurance—over very long distances, able to outrun almost every other species on land except certain dogs. ==See also==