SortStack #735 — 2028-06-13

By weight · Order from lightest to heaviest.

  1. An Etruscan shrew, the world's smallest mammal by mass 1.8 g

    Its heart beats up to 1,500 times a minute, and it must eat about twice its body weight in insects every single day.

  2. A standard Good Delivery gold bar, the kind in bank vaults 12.4 kg

    Smaller than a brick yet heavier than most pet dogs — gold is so dense this bar would fit in a shoebox with room to spare.

  3. A full-size kitchen refrigerator 135 kg

    Refrigeration changed cuisine more than almost any invention; Einstein even co-patented a fridge with no moving parts in 1930.

  4. An adult male western lowland gorilla 160 kg

    Silverbacks are several times stronger than a fit human, yet they eat almost nothing but plants and the occasional termite.

  5. An adult male orca 5 t

    Orcas are actually the largest species of dolphin, and each pod hunts with dialects and techniques passed down like culture.

  6. A fully equipped fire engine 18 t

    Around 2,000 liters of onboard water account for a chunk of the heft — plus ladders, hoses, and hydraulic rescue tools.

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