THE ANIMAL FILES

Bactrian camel

Camelus bactrianus

Two humps store energy, not drinking water.

The Bactrian camel has a two-humped silhouette and a coat that changes with the season. Stored fat, tough plant food and repeated chewing all contribute to life in a demanding environment. The domestic animal is also distinct from the separately named wild Bactrian camel.[1]

Follow the evidence ↓
Bactrian camel
Image: J. Patrick Fischer · Commons · CC BY-SA 3.0
Hump reserves
The humps contain fat.[1]
Chewing again
Partly chewed food is brought back up.[1]
Domestic and wild names
Camelus bactrianus differs from Camelus ferus.[1][2]

Hump reserves

Fat held in the humps supplies energy when food is scarce. A shaggy coat retains heat in cold conditions and sheds as conditions warm. Energy storage and insulation serve different functions.[1]

Chewing again

The diet includes dry, prickly or salty vegetation. Partly chewed food is swallowed and later returned to the mouth for further chewing. Taking a mouthful and finishing its processing are not the same moment; tough plant material can receive another round of mechanical breakdown.[1]

Domestic and wild names

The domestic Bactrian camel and wild Bactrian camel are distinct species. Both have two humps, and domestic animals can occur outside managed herds, so free-ranging behaviour alone does not identify the wild species.[1][2]

A COMMON MIX-UP

Are the humps tanks of water?

No. They store fat used as an energy reserve.[1]

TRY A LITTLE REASONING

Why does seeing two humps not settle the domestic-versus-wild species question?

Reveal the explanation

Both have two humps. Species identity requires evidence beyond that shared feature.[1][2]

Sources & editorial notes

Adapted and translated from the cited Wikipedia revisions, with source-linked reasoning. Image credit and licence are listed separately above.

Adapted and translated from Wikipedia contributors; exact revisions are linked below. CC BY-SA 4.0

  1. Wikipedia contributors — Bactrian camel (cited revision)
  2. NCBI Taxonomy — Camelus bactrianus

Last fact check:

One discovery leads to another

DromedaryThe hump stores fuel, not a flask of drinking water.Camelus dromedarius ↗LlamaLong ears, padded toes and a newborn ready to stand.Lama glama ↗AlpacaChewing cud does not imply a cow's stomach layout.Vicugna pacos ↗