In 1862, Charles Darwin predicted the existence of one of the most extreme pollinators after he received an orchid (Angraecum sesquipedale) with a foot-long tube leading to its nectar depository. Darwin predicted that an insect with an extremely long feeding structure, or proboscis, would eventually be discovered in the orchid's homeland of Madagascar.
In 1903, naturalists found Morgan's sphinx moth (Xanthopan morgani), a Madagascan moth with a proboscis that is just over 30 centimeters (one foot) long. Unfortunately, Darwin didn't survive to see the moth that fit his theory. He passed away two decades before the moth fluttered into a collector's clutches.