SortStack #2591 — 2033-07-13

By speed · Order from slowest to fastest.

1. An Olympic swimmer at full speed 9.3 km/h

   Top swimmers shave their bodies to cut drag, trimming fractions of a second that can decide a gold medal.

2. A koala on the run 30 km/h

   Koalas sleep up to 22 hours a day because their eucalyptus diet is so low in energy and mildly toxic.

3. A sea lion swimming 38 km/h

   Sea lions can be trained to detect underwater mines and even retrieve objects for navies.

4. A common swift in flight 113 km/h

   Swifts can stay airborne for nearly a year without landing, even sleeping on the wing high above the ground.

5. A racing bobsled 150 km/h

   Bobsled crews sprint to shove the sled at the start, then leap in, as those first seconds decide the race.

6. A bullet train at full speed 330 km/h

   Japan's bullet trains have a near-perfect safety record, with average delays measured in seconds, not minutes.

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