Eye evolution

video 5’16 : https://youtu.be/QjVqIW281Qo The animal kingdom boasts an incredible diversity of eyes. Some rotate independently while others have squiggly-shaped pupils. Some have protective lids, others squirt blood. But which creature has the best sight? Which sees best in the darkness? Which sees the most detail? Which animal sees the most color? And finally, which detects motion the fastest? Thomas W. Cronin investigates. Which animal has the best eyesight? - Thomas W. Cronin 

video 4'43 : https://youtu.be/qrKZBh8BL_U?si=DL3l2fTXjWkHEmsh The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures evolve? Joshua Harvey details the 500 million year story of the human eye. Lesson by Joshua Harvey, animation by Artrake Studio.

text 173 words : Evolution of the Eye : http://www.scientificamerican.com/article.cfm?id=evolution-of-the-eye

drawing : Visualizing the Evolution of Vision and the Eye : ttps://www.visualcapitalist.com/eye-evolution/

video 3'46 : : https://youtu.be/I19usgWHJLc Our short-sighted inner fish: Vision explains why our fish ancestors came on to land

video 4'59 : https://youtu.be/jdrNjHPYKz4?si=qQQKUPeo-60DTLJQ Why do cats have vertical pupils? - Emma Bryce