Page 143 - (DK) I Can’t Believe It! 2

IT CAN’T BE TRUE! 141

LONG-DISTANCE SWIMMERS

5.3 mph
(8.6 kph)

An Olympic swimmer
can keep up his top
sprint speed for only
one length of the pool
(164 ft/50 m). Polar bears can swim very long distances.
Scientists tracked one bear over a 420-mile
(675-km) journey. It took nearly 10 days,
and the bear didn’t stop to eat or sleep.

67 mph

(108 kph)

The fastest personal
watercraft can zoom A sailfish
across the water at about speeds through
12.5 times the speed of the water at
Olympic swimmer. 68 mph (110 kph),
faster than a
personal
watercraft.
68 mph

(110 kph)

A sailfish is a
predator of the open
ocean. It uses its speed
and large dorsal fin to herd
a shoal of fish into a ball. It then
slashes its prey with its long bill.

US_140_141_309600_ICBT_Fastest_Swimmers.indd 141 19/12/17 2:36 pm