SortStack #2918 — 2034-06-05

By size · Order from shortest to longest.

1. A human red blood cell 8 µm

   Your body makes around 2 million of them every second to replace the ones that wear out after roughly 120 days.

2. A common garden ant 5 mm

   Ants can lift objects many times their own weight thanks to their tiny size and the physics of scale.

3. A ladybird beetle 1 cm

   A single ladybird can eat 5,000 aphids in its lifetime, making it a gardener's favourite predator.

4. A Bengal tiger (body length) 2.1 m

   A tiger's roar can be heard up to three kilometres away and carries frequencies low enough to paralyse prey with fear.

5. A wooden utility pole 18.5 m

   Most are pressure-treated with preservatives so they can stand outdoors for 40 years or more without rotting.

6. The Mississippi River (length) 3.7K km

   A raindrop falling at its source takes about 90 days to drift all the way down to the Gulf of Mexico.

← All puzzles · Play today’s SortStack