THE ANIMAL FILES

Western diamondback rattlesnake

Crotalus atrox

Diamond marks and a banded tail tell different parts of the pattern.

Western diamondback rattlesnakes have diamond-like back markings and contrasting tail bands, both of which vary. They use landscapes from coastal plains to rocky canyons and woodlands. Usually solitary outside mating, they may share winter caves or burrows with other snakes.[1]

Follow the evidence ↓
Western diamondback rattlesnake
Image: Gary Stolz (original) · Commons · Public domain
Back pattern
Dark blotches that become diamond-like[1]
Tail pattern
Alternating dark and pale bands[1]
Winter shelter
Caves and burrows[1]

Patterns have positions

Darker blotches run along the back, becoming the diamond-like marks reflected in the name. The tail carries contrasting dark and pale bands. Ground colour varies, and similar patterns occur in other snakes.[1]

A landscape broader than bare desert

The species occurs across coastal plains, rocky canyons, hillsides and several vegetation types, including scrub, grassland and woodland. Temperature influences activity, and animals may bask on warm winter days.[1]

Sharing a winter place is not year-round grouping

Western diamondbacks are usually solitary outside mating, but winter shelter sites can contain other snakes. A shared den records a particular season and task, not necessarily a stable travelling group.[1]

A COMMON MIX-UP

Do dark and pale tail rings belong only to this species?

No. Several other rattlesnakes also have banded tails. Tail pattern is one feature within a larger anatomical description, not a character unique to this species.[1]

TRY A LITTLE REASONING

Would several snakes in one winter cave prove year-round social living?

Reveal the explanation

No. Shelter use is tied to season and environmental conditions. Animals that are usually solitary can gather at a useful winter site without maintaining the same association during the rest of their activities.[1]

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 — Western diamondback rattlesnake (fixed revision; adapted and translated)
  2. NCBI Taxonomy — Crotalus atrox (identity and classification)

Last fact check:

One discovery leads to another

Saharan horned viperThe horns can be missing from a horned viper.Cerastes cerastes ↗AdderA northern snake’s year includes a long winter pause.Vipera berus ↗Black mambaThe black in its name is inside the mouth.Dendroaspis polylepis ↗