#1574: sleep, ecoregions, cicadas
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The sleeping hours European map, country by country, the active, periodic and reversible biological state of loss of consciousness that is critical for a healthy life
https://landgeist.com/2021/05/12/sleep-duration-in-europe/ -
Ecoregion allows to download in CC-BY 4.0 the data of the terrestrial ecoregions of the world, the distribution of plants and animals, the effects of the mountain ranges and other geographical and climatic characteristics that determine "who lives where" in the natural world
https://ecoregions2017.appspot.com/ -
Brood X is one of the largest (by geographical extension) spawning of 17-year-old cicadas, which will begin to emerge approximately when the soil at 20 cm underground reaches 17ºC temperature
https://cicadas.uconn.edu/brood_10/#
Raf