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Why do so many parasites, especially helminths aka flatworms, jump around as many as THREE hosts to complete their life cycle? Why isn’t one host good enough for them? We’ll find out why parasites evolve complex life cycles that don’t seem to make any sense.
Hosted by: Reid Reimers (he/him)
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Sources:
https://www.researchgate.net/publication/349067328_Parasite_Biodiversity/download
https://onlinelibrary.wiley.com/doi/full/10.1111/evo.14299
https://www.sciencedirect.com/science/article/abs/pii/S1471492219302697
https://royalsocietypublishing.org/doi/full/10.1098/rspb.2014.1462
https://academic.oup.com/evolut/article/75/8/1936/6730303
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2679081/
Images:
http://www.weinersmith.com/gallery/
https://www.inaturalist.org/observations/877091
https://www.inaturalist.org/observations/93677398
https://www.inaturalist.org/observations/147789621
https://danielleclaar.weebly.com/illustration.html
https://www.gettyimages.com/detail/illustration/life-cycle-of-sheep-liver-fluke-with-sheep-royalty-free-illustration/1372381135?phrase=parasite+life+cycles&adppopup=true
https://www.gettyimages.com/detail/photo/trematode-under-a-microscope-royalty-free-image/1074521246?phrase=trematode&adppopup=true
https://www.gettyimages.com/detail/video/wild-male-deer-with-antlers-horns-grazing-green-lawn-stock-footage/1382371946?adppopup=true
https://www.gettyimages.com/detail/photo/dead-house-fly-royalty-free-image/157181614?phrase=dead+fly&adppopup=true
https://www.gettyimages.com/detail/video/large-brown-beautiful-grape-snail-crosses-an-asphalt-stock-footage/1267131947?adppopup=true
https://www.gettyimages.com/detail/video/autumn-stag-and-two-jackdaws-2012-hd-video-stock-footage/473083515?adppopup=true
https://www.gettyimages.com/detail/video/study-movement-and-specimens-of-transversotrema-stock-footage/1183905713?adppopup=true
https://www.gettyimages.com/detail/photo/roe-deer-droppings-in-the-snow-in-the-forest-royalty-free-image/1397415688?phrase=deer+poo&adppopup=true
https://www.gettyimages.com/detail/video/snail-infected-with-parasitic-green-banded-broodsac-stock-footage/1478160450?adppopup=true
https://commons.wikimedia.org/wiki/File:Tyrannosaurus_with_infection.jpg
https://www.gettyimages.com/detail/photo/frog-tree-frog-dumpy-frog-flying-frog-royalty-free-image/1303401075?phrase=snail+and+frog&adppopup=true
https://commons.wikimedia.org/wiki/File:Fundulus_parvipinnis.png
https://www.gettyimages.com/detail/video/great-blue-heron-eating-a-fish-washington-dc-virginia-stock-footage/1486578810?adppopup=true
https://www.gettyimages.com/detail/video/trematode-cercaria-larva-in-freshwater-fish-under-the-stock-footage/1174143282?adppopup=true
https://www.gettyimages.com/detail/video/australian-pelican-stock-footage/1472691067?adppopup=true
https://www.gettyimages.com/detail/video/common-periwinkles-in-rocks-time-lapse-showing-how-they-stock-footage/1250894449?adppopup=true
https://www.gettyimages.com/detail/video/migrating-pacific-salmon-an-important-food-source-for-stock-footage/953156890?adppopup=true
https://www.gettyimages.com/detail/photo/tiny-spring-peeper-froglet-amphibian-on-plant-royalty-free-image/1407162993?phrase=froglet&adppopup=true
https://www.gettyimages.com/detail/video/hermit-crab-changing-shell-close-up-stock-footage/505536169?adppopup=true
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