✦ LIBER ✦

Lateralized behavior in two captive bottlenose dolphins (Tursiops truncatus)

✍ Scribed by Lori Marino; Jennifer Stowe

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 20 KB
Volume: 16
Category: Article
ISSN: 0733-3188
DOI: 10.1002/(sici)1098-2361(1997)16:2<173::aid-zoo7>3.0.co;2-7

No coin nor oath required. For personal study only.

✦ Synopsis

The study of behavioral laterality in humans and nonhumans can contribute to our understanding of brain evolution and functional similarities across species. Few studies have focused on cetaceans. This report exams lateralized behaviors in two captive bottIenose dolphins (Tursiops truncatus). Observations were made by videotaping through a 90 × 150 cm underwater one-way Plexiglass mirror. Directional bias in swimming, "barrel-roll" maneuvers, and circular head movements was assessed for each subject. There was a strong clockwise bias in swimming direction and direction of "barrel-rolls," but not circular head movements. The clockwise bias in swimming direction and "barrel-roll" maneuvers may be consistent with a rightward turning bias. Zoo Biol 16:173-177, 1997.

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