The Parasite That Makes You King

Being infected with a parasite is bad, right? So why are wolves in Yellowstone National Park infected with Toxoplasma gondii some of the most successful individuals

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Sources:
https://www.nature.com/articles/s42003-022-04122-0
https://www.future-science.com/doi/full/10.2144/btn-2022-0115
https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-021-04769-4
https://royalsocietypublishing.org/doi/abs/10.1098/rspb.2000.1182
https://pubmed.ncbi.nlm.nih.gov/26859275/
https://journals.biologists.com/jeb/article/216/1/127/11369/Influence-of-latent-Toxoplasma-infection-on-human
https://academic.oup.com/jmammal/article/96/6/1174/1169087
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/550
https://www.nature.com/articles/s41467-021-24092-x#Sec3
https://www.sciencedirect.com/science/article/pii/S1198743X1462509X


Toxoplasma seroprevalence vs cougar density : https://www.nature.com/articles/s42003-022-04122-0/figures/1

Predicted probabilities of infected wolf behaviour:
https://www.nature.com/articles/s42003-022-04122-0/figures/5

Feedback loop of toxoplasma in wolves and cougars :
https://www.nature.com/articles/s42003-022-04122-0/figures/6


Images

https://www.gettyimages.com/detail/video/beautiful-wolf-walking-closer-to-camera-in-snowy-winter-stock-footage/930841624?adppopup=true
https://www.gettyimages.com/detail/photo/kitten-in-the-litter-box-royalty-free-image/155378861?phrase=litterbox+kitten&adppopup=true
https://commons.wikimedia.org/wiki/File:Toxoplasma_gondii_tachy.jpg
https://www.gettyimages.com/detail/video/large-maine-coon-cat-being-held-by-the-female-owner-stock-footage/960065192?adppopup=true
https://www.gettyimages.com/detail/photo/litter-box-royalty-free-image/170455198?phrase=litterbox&adppopup=true
https://en.wikipedia.org/wiki/File:Ophiocordyceps_unilateralis.png
https://www.gettyimages.com/detail/photo/leopard-royalty-free-image/168257489?phrase=leopard&adppopup=true
https://commons.wikimedia.org/wiki/File:Wolf_from_the_Canyon_pack_standing_on_road_near_Norris_taken_from_snowcoach_through_the_glass_window_(32389740302).jpg
https://commons.wikimedia.org/wiki/File:Junction_Butte_Pack_photographed_from_a_fixed-wing_during_wolf_study_(49235371881).jpg
https://commons.wikimedia.org/wiki/File:Yellowstone-wolf-17120-2.jpg
https://commons.wikimedia.org/wiki/File:Canis_lupus_with_radio_collar.jpg
https://commons.wikimedia.org/wiki/File:Junction_Butte_Pack_photographed_from_a_fixed-wing_during_wolf_study_(2)_(49234905848).jpg
https://commons.wikimedia.org/wiki/File:Lone_Wolf_(9528897493).jpg
https://commons.wikimedia.org/wiki/File:Flickr_-_Laenulfean_-_wolves.jpg
https://commons.wikimedia.org/wiki/File:Cougar_tom_peeks_through_branches_from_a_tree_(2)_(51884602554).jpg
https://www.nature.com/articles/s42003-022-04122-0#rightslink
https://commons.wikimedia.org/wiki/File:Mountain_Lion_scat_(_on_way_up_trail)_Huachuca_Canyon_Sierra_Vista_AZ_2018-09-09_10-17-53-2_(31807252208).jpg
https://www.gettyimages.com/detail/photo/anticipation-royalty-free-image/485481904?phrase=hyena+lion&adppopup=true
https://www.gettyimages.com/detail/video/arctic-wolf-canis-lupus-tundrarum-mother-playing-with-stock-footage/1095446878?adppopup=true

https://en.m.wikipedia.org/wiki/File:Front_view_of_a_resting_Canis_lupus_ssp.jpg