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The perceived popularity of animals plays a crucial role in their support by the general public and consequently in the success of conservation efforts. We experimentally investigated with Slovak schoolchildren the role of animal coloration and basic human emotions in the willingness to protect animals. Both unaltered and experimentally manipulated pictures of aposematic animals increased perceived danger. Spiders and snakes were perceived as more dangerous/disgusting than other taxa, particularly birds and mammals. Children showed significantly a stronger willingness to protect aposematic animals over inconspicuous, cryptic animals. Perceived disgust and danger of animals negatively correlated with a willingness to protect them with females showing greater fear of animals than males. Our results suggest that the use of aposematic animals in conservation programs may increase their popularity and public support. bs_bs_banner Animal Conservation. Print ISSN 1367-9430 Animal coloration and conservation P. Prokop and J. Fanč ovič ová Animal coloration and conservation P. Prokop and J. Fanč ovič ová Supporting informationAdditional Supporting Information may be found in the online version of this article:Appendix S1. List of species used in PowerPoint presentation.Animal coloration and conservation P. Prokop and J. Fanč ovič ová

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Laughter is a nonverbal vocal expression that often communicates positive affect and cooperative intent in humans. Temporally coincident laughter occurring within groups is a potentially rich cue of affiliation to overhearers. We examined listeners’ judgments of affiliation based on brief, decontextualized instances of colaughter between either established friends or recently acquainted strangers. In a sample of 966 participants from 24 societies, people reliably distinguished friends from strangers with an accuracy of 53–67%. Acoustic analyses of the individual laughter segments revealed that, across cultures, listeners’ judgments were consistently predicted by voicing dynamics, suggesting perceptual sensitivity to emotionally triggered spontaneous production. Colaughter affords rapid and accurate appraisals of affiliation that transcend cultural and linguistic boundaries, and may constitute a universal means of signaling cooperative relationships.

Laughter is a nonverbal vocalization occurring in every known culture, ubiquitous across all forms of human social interaction. Here, we examined whether listeners around the world, irrespective of their own native language and culture, can distinguish between spontaneous laughter and volitional laughter-laugh types likely generated by different vocal-production systems. Using a set of 36 recorded laughs produced by female English speakers in tests involving 884 participants from 21 societies across six regions of the world, we asked listeners to determine whether each laugh was real or fake, and listeners differentiated between the two laugh types with an accuracy of 56% to 69%. Acoustic analysis revealed that sound features associated with arousal in vocal production predicted listeners' judgments fairly uniformly across societies. These results demonstrate high consistency across cultures in laughter judgments, underscoring the potential importance of nonverbal vocal communicative phenomena in human affiliation and cooperation.