Hot Weather for Wood Frogs (Lithobates sylvaticus)Anchorage, Alaska, United States 4 Aug 2015 |
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Bullfrogs threaten B.C. ecosystemsSouthwestern British Columbia 21 Jul 2015
Canadian Geographic
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Warmer Climate Linked To Earlier Frog CallingIthaca, New York, United States 21 Jul 2001
Science Daily
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