The same mechanisms can be expected in humans, where researchers have studied behaviours including risk taking by young men, hunting of large game animals, and costly religious rituals, finding that these appear to qualify as costly honest signals.
Mekanisme yang sama juga bisa dilihat pada manusia, saat para peneliti telah mempelajari perilaku termasuk pengambilan risiko oleh anak muda, berburu hewan besar, dan ritual agama berbiaya, menemukan bahwa hal tersebut termasuk sinyal jujur berbiaya.