Vol 2, Issue 1, February 2015

• Cover Page
• Inside Pages
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• Sex Difference in Bottlenose Dolphin Sightings during a Long-term Bridge Construction Project
  Ann Weaver
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• Synchronous and Rhythmic Vocalizations and Correlated Underwater Behavior of Free-ranging Atlantic Spotted Dolphins (Stenella frontalis) and Bottlenose Dolphins (Tursiops truncatus) in the Bahamas
  Denise L. Herzing
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• Conceptive Estrus Behavior in Three Bottlenose Dolphins (Tursiops truncatus)
  Holley Muraco and Stan A. Kuczaj II
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• Play Behavior in Crocodilians
  Vladimir Dinets
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• Structure and Dynamics of Humpback Whales Competitive Groups in Ecuador
  Fernando Félix and Johana Novillo
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• Mother-Offspring Signature Whistle Similarity and Patterns of Association in Atlantic Spotted Dolphins (Stenella frontalis)
  Sara E. Bebus and Denise L. Herzing
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• Gotta Go, Mom's Calling: Dolphin (Tursiops truncatus) Mothers Use Individually Distinctive Acoustic Signals To Call Their Calves
  Stan A. Kuczaj II, Holli C. Eskelinen, Brittany L. Jones, and Jill L. Borger-Turner
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• Functionality in Tool Use in Western Lowland Gorillas (Gorilla gorilla gorilla)
  Matthew K. LeFauve and Susan W. Margulis
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