SortStack #468 — 2027-09-20

By size · Order from shortest to longest.

1. A house dust mite 0.3 mm

   Millions live in the average mattress, feasting on flakes of dead skin, yet they are too small for the naked eye to see.

2. A domestic cat (body length) 49 cm

   A cat has 32 muscles in each ear, letting it swivel them independently to pinpoint a sound's source.

3. A red kangaroo (standing) 1.5 m

   Kangaroos cannot walk backwards, a trait so iconic it earned them a spot on Australia's coat of arms.

4. A great white shark 5.2 m

   Great whites can detect a single drop of blood diluted in 100 litres of water from hundreds of metres away.

5. An orca (killer whale) 8 m

   Orcas have distinct dialects passed down through families, essentially regional accents that differ between pods.

6. Veryovkina Cave (depth) 2.2 km

   The deepest known cave on Earth, explorers need weeks underground to reach its bottom and climb back out.

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