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Dating origin orchidaceae

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often called Darwin's orchid, has an 18-inch long nectar-spur emanating from its labellum.

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Male neotropical orchid bees (tribe Euglossini) collect specific aromatic chemicals (including methyl salicylate, eugenol, cineole, benzyl acetate, methyl benzoate, methyl cinnamate and skatole) from various orchid flowers in their special collection organs.This was a deliberate attack on the argument from design, and indeed on the notion of purpose in the world in general.Even the title was ironic, for Paley had said that there can be no contrivance without a contriver. He showed how complex and remarkably effective adaptations could in fact be built up by small steps through natural selection.Darwin, himself, observed this spectacular process in C.saccatum, and was ridiculed by Thomas Huxley as a result due to the event's alleged preposterousness.(orchids) are a diverse group of flowering plants (the orchid family).

Orchids are among the original "complex contrivances" in biology that astounded naturalists.

Flies or bees are lured into the pouch due to the bright colors of the flowers, try to land, fall into a fluid-filled bucket, and in the process of climbing out of the pouch, the hapless pollinator gets the flower's pollinium (pollen packet) glued to its abdomen (or elsewhere).

This "contrivance" is the most commonly cited as evidence for ID, since it's a multistep process.

Many of these mimics have very ingenious ways of attracting pollinating insects, appealing to the senses of both sight and smell.

Darwin was fascinated by orchids; in his Origin of Species he mentioned the 'inexhaustible number of contrivances' by which orchids ensure their pollination, pointing out that these would have entailed changes in every part of the flower.

The male bees derive no nutrition from these orchids, but instead use these collected scents to attract female orchid bees for mating.