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depend on hummingbirds for pollination. In return for this unwitting service, the flowers provide nectar an$l insects.
Temperatures in the Andes Mountains of Peru can dip below freezing at night. Hummingbirds adjust to this by becoming dormant and sinking into a torpor; all metabolic processes are nearly stilled until the birds are warmed by the tropical sun the next day.
The great American ornithologist and painter of birds, John James
Audubon, wrote
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