How Plants Tell Time

Plants don’t have brains or muscles, and yet some of them can perform such feats as eating insects or following the sun. Scientists haven’t completely figured out how this happens, but they do have some pretty strong leads.

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Sources:
http://plantsinmotion.bio.indiana.edu/plantmotion/movements/leafmovements/oxalis/oxalis.html

https://www.livescience.com/34569-why-flowers-close-at-night-nyctinasty.html
https://www.thedailygarden.us/garden-word-of-the-day/nyctinasty
https://www.mobot.org/jwcross/duckweed/phytochrome.htm
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC366182/pdf/plntphys00247-0103.pdf
https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291521-3773%2820000417%2939%3A8%3C1400%3A%3AAID-ANIE1400%3E3.0.CO%3B2-Z
https://www.thoughtco.com/definition-of-reversible-reaction-and-examples-605617
https://www.nature.com/articles/206215b0.pdf
https://www.jstor.org/stable/3546032?seq=1#metadata_info_tab_contents
https://www.sciencedirect.com/science/article/pii/S0168945214000818?via%3Dihub
https://www.researchgate.net/publication/305890471_How_do_sunflowers_follow_the_Sun_-_And_to_what_end
https://www.sciencedirect.com/science/article/pii/S0014579307003729#bib47
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3040.1993.tb00522.x
https://academic.oup.com/pcp/article/38/5/526/1935394
https://depts.washington.edu/cims/research/Bio-Intelligent-Materials.pdf
http://www.plantphysiol.org/content/plantphysiol/67/5/965.full.pdf
https://www.sciencedirect.com/science/article/pii/S0014579307003729#bib42
https://science.sciencemag.org/content/354/6314/897
https://academic.oup.com/jxb/article/65/20/5749/2485228
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Images & Video:
https://commons.wikimedia.org/wiki/File:Desmanthus_pern_83565_b.jpg
https://commons.wikimedia.org/wiki/File:Desmanthus_pernambucanus_nyctinastic_(nighttime)_leaf_movement_0175.JPG
Venus Fly Trap Eating Compilation: Scott's Revenge On The Caterpillars
https://commons.wikimedia.org/wiki/File:Bauhi_purpu_151006-0058_tdp.JPG