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- The first eyes appeared about 541 million years ago – at the very beginning of the Cambrian period when complex multicellular life really took off – in a group of now extinct animals called trilobites which looked a bit like large marine woodlice. Their eyes were compound, similar to those of modern insects.
www.newscientist.com/definition/evolution-of-the-eye/
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History of research. The human eye, showing the iris and pupil. In 1802, philosopher William Paley called it a miracle of " design ." In 1859, Charles Darwin himself wrote in his Origin of Species, that the evolution of the eye by natural selection seemed at first glance "absurd in the highest possible degree". [3]
The first eyes appeared about 541 million years ago – at the very beginning of the Cambrian period when complex multicellular life really took off – in a group of now extinct animals called...
Oct 20, 2017 · First known eyes. The fossil record reveals the first known eye was in a trilobite, Olenellus fowleri. Although doubtful it is the first eye, it is the first known eye because of the...
- I R Schwab
- irschwab@ucdavis.edu
- 2018
Jul 1, 2011 · The results indicate that our kind of eye—the type common across vertebrates—took shape in less than 100 million years, evolving from a simple light sensor for circadian (daily) and seasonal...
Jun 27, 2024 · When Did the First Eye See the World? Because eyes obviously evolved independently many times from directional photoreceptors, it is not easy to work out which animal group was the first to take this step. It could even be that the first animals with eyes belong to a group that became extinct long time ago and left no traces.
The evolution of eyes started slowly in the Precambrian and then took off during the Cambrian period, between 541 and 485 million years ago. ‘The first eyes’ describes the first step in vision as the process of converting light into electrical signals, which is triggered by the rhodopsin molecule shared by all animals.
Inside the Eye: Nature’s Most Exquisite Creation. To understand how animals see, look through their eyes. By Ed Yong. Photographs by David Liittschwager. 35 min read. The eyes of a Cuban rock...
