作者: David Chiszar , Claes Andren , Göran Nilson , Barbara O’Connell , Joseph S. Mestas
DOI: 10.3758/BF03212258
关键词: Vipera 、 Zoology 、 Psychology 、 Neoteny 、 Predation 、 High rate 、 Viperidae 、 Rodent 、 Old World 、 Bitis
摘要: It is known that striking rodent prey induces a sustained, high rate of tongue flicking in rattlesnakes. The present study shows this phenomenon (called strike-induced chemosensory searching, SICS) to occur species rattlesnakes not previously investigated and two ofAgkistrodon. SICS occurs Old World vipers (Eristocophis, Vipera, Bitis), including which normally hold their after striking. A hypothesis offered (1) accounts for the occurrence these latter (2) suggests some viperids may have arisen through paedomorphic evolution. More generally, it concluded probably homologous trait pit first appeared elapid ancestors viperidae.