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Triadic Interations with Tools in a Gorilla

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Does a Rival's Song Elicit Territorial Defense in a Tropical Songbird, the Pied Bush Chat (Saxicola caprata)?

Navjeevan Dadwal and Dinesh Bhatt

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Monitoring the Behavioral and Adrenal Activity of Giraffe (Giraffa camelopardalis) to Assess Welfare During Seasonal Housing Changes

Catherine B. Razal, Jocelyn Bryant, and Lance J. Miller

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Isolation Calls of the Bat Saccopteryx bilineata Encode Multiple Messages

Ahana Aurora Fernandez and Mirjam Knörnschild

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Zoo Foraging Ecology: Preference and Welfare Assessment of Two Okapi (Okapia johnstoni) at the Brookfield Zoo

Sandra M. Troxell-Smith, Jason V. Watters, Christopher J. Whelan, and Joel S. Brown

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