$29.99

Jen Wilson and Judy Katz

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Yossi Yovel

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Art Wolfe

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$24.99

Kim Frank

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Larry Mueller and Marguerite Reiss

$24.99

(Book #8 of Animal Happiness)

$17.99

Barbara McLean

$35.00

Rachel A. Page, Dina K. N. Dechmann, M. Teague O'Mara, Marco Tschapka, and The Smithsonian Tropical Research Institute

$100.00

Greg Murray

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Fiona Mathews and Tim Kendall

$17.82

Diane Morgan

$28.99

(Book #9 of Animal Happiness)

Bronwyn Eley

$29.99

Andrew Muse

$17.99

Mark Hawthorne

$21.99

(Part of Wild in the West)

Chase Reynolds Ewald

$48.99

James Raffan

$17.99

(Book #6 of Animal Happiness)

$29.99

Jack Ballard

$39.99