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Hourglass treefrog tadpoles (Dendropsophus or Hyla ebracatta) that are a month old at Henry Vilas Zoo in Madison, WI.

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Hourglass treefrog tadpoles (Dendropsophus or Hyla ebracatta) that are a month old at Henry Vilas Zoo in Madison, WI.

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A month-old hourglass treefrog tadpole (Dendropsophus or Hyla ebracatta) at the Henry Vilas Park Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

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Hourglass treefrog (Hyla ebracatta) at the Detroit Zoo.

Photo: Julie Jensen Director of Marketing | WVC O: 866.800.7326 | D: 702.443.9249 | E: j.jensen@wvc.org

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