Short Communication


, Volume 39, Issue 4, pp 545-548

First online:

Tool use by a red howler monkey (Alouatta seniculus) towards a two-toed sloth (Choloepus didactylus)

  • Cécile Richard-HansenAffiliated withProgramme Faune Sauvage, EDF/CNEH
  • , Natalia BelloAffiliated withProgramme Faune Sauvage, EDF/CNEH
  • , J. -Christophe ViéAffiliated withProgramme Faune Sauvage, EDF/CNEH

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Among New World monkeys, spontaneous tool use and object manipulation are commonly descirbed inCebus species only. We report here an occurrence of tool manipulation by a wild male red howler monkey (Alouatta seniculus), observed using a stick to softly but repeatedly hit a two toed sloth (Choloepus didactylus) resting in the same tree. The ecological context of this unusual behavior for this quiet species generally showing very little manipulative propensity is discussed.

Key words

Alouatta seniculus Red howler monkey Tool use Interspecific interaction Two-toed sloth Choloepus didactylus