Pete Oxford / Inside a lava tube, Santa Cruz Is, Galapagos 2006
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Pete Oxford / Lava tunnels in highlands, Santa Cruz Island, Galapagos Islands
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Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon
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Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) pair exit a cave while a third flies in the background in the Derrick Cave Complex, a series of lava tubes and lava bubbles, dusk, central Oregon
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Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave complex, a series of lava tubes and lava bubbles, dusk, central Oregon
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Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon
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Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon
