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

text 264 words : Eye evolution at high resolution: The neuron as a unit of homology : https://www.sciencedirect.com/science/article/pii/S0012160609008835

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