Organism

Three-spined Stickleback

TL;DR

Fish where male red coloration honestly signals health in clean water (carotenoids indicate good diet and low parasite load).

Gasterosteus aculeatus

Fish

Fish where male red coloration honestly signals health in clean water (carotenoids indicate good diet and low parasite load). Example of context-dependent signal honesty - pollution can make the signal less reliable.

Notable Traits of Three-spined Stickleback

  • Carotenoid signaling
  • Context-dependent honesty
  • Environmental sensitivity

Related Mechanisms for Three-spined Stickleback