American Museum of Natural History:
Darwin first saw this astonishing orchid from Madagascar, Angraecum sesquipedale, in 1862. Its foot-long green throat holds nectar—the sweet liquid that draws pollinators – but only at its very tip. “Astounding,” Darwin wrote, of this strange adaptation. “What insect could suck it?” He predicted that Madagascar must be home to an insect with an incredibly long feeding tube, or proboscis. Entomologists were dubious: no such insect had ever been found there.
Related: High Resolution Darwin Documents – Complete Work of Charles Darwin Online – How flowering plants beat the competition – What Are Flowers For?

At first I kept trying to figure out if it was fake 🙂 Very cool. This would be a great introduction into how species adapt over time to their environment.
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Darwin theory may have some truth to living creatures, although not all