SortStack #3094 — 2034-11-28

By weight · Order from lightest to heaviest.

1. An adult brown rat 350 g

   Rats emit ultrasonic giggles when tickled and come back for more — research that helped earn an Ig Nobel Prize.

2. An adult red fox 5.2 kg

   Red foxes may use Earth's magnetic field to aim their famous pouncing dives — they prefer striking toward the northeast.

3. A whole Thanksgiving turkey 7.5 kg

   Wild turkeys can fly at up to 90 km/h in short bursts; the broad-breasted domestic birds on holiday tables cannot fly at all.

4. A capybara, the world's largest rodent 50 kg

   Capybaras are so famously chill that birds, monkeys, and even crocodilians perch and lounge on them like furniture.

5. An upright piano 220 kg

   Inside is a cast-iron plate holding strings at a combined tension of roughly 18 tonnes of pull.

6. An adult blue whale 140 t

   The largest animal ever known has a heart the size of a small car, and its calves gain roughly 90 kg per day on milk alone.

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