Underwater and aerial visual acuity in the Asian 'clawless' otter (Amblonyx cineria cineria)

Autor:	Richard F. Balliet, Ronald J. Schusterman
Rok vydání:	1971
Předmět:	Male Mammals Multidisciplinary Visual acuity Asia Enhydra lutris biology Zalophus californianus Visual Acuity Emmetropia Environment biology.organism_classification Adaptation Physiological Otter Fishery Geography biology.animal medicine Animals Lutra medicine.symptom Underwater Sea lion
Zdroj:	Nature. 234(5327)
ISSN:	0028-0836
Popis:	Gentry and Peterson1 have compared data obtained from a sea otter (Enhydra lutris) on an underwater size discrimination task with data obtained by Schusterman et al.2 using two sea lions (Zalophus californianus). Although Gentry and Peterson did not test the sea otter's vision in air, they concluded that its performance was inferior to that of the sea lion because the “pinniped eye” is emmetropic underwater with adaptations for aerial vision and that the “otter eye” (Lutra) was emmetropic in air with adaptations for underwater vision3. Such an interpretation of the difference between otters and sea lions emphasizes different dioptric mechanisms and ignores neural structure and organization at the retinal level, as well as at the level of the cortical projection areas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f12cc95962937cda6f0775cdfa54d65 https://pubmed.ncbi.nlm.nih.gov/4945008 Zobrazit plný text záznamu