@mangantasy289

3 weeks ago

super creepy, extremely interesting evolutionwise. Biologist (entomologist/arachnologist) here, and sorry.. I really don't want to be mean, I actually really like your videos, but I just can't help but correct some points. Already the first one, the author mixed up things dramatically. The unfamously known fish attracted by the ammonium in pee and capable of entering your urethra are Candiru. Small species of catfish. Also this actually happens extremely rarely and the specimens doing so a very small. The images (and sketch) though show Lamprey's. These are way bigger (120 cm (47 in) and not(edit: "real fish" but) "jawless fish". It is again very rare, but possible, that they attach to humans. They are not attracted by ammonium. Both animals may be called "Vampire fish" in the vernacular, hence the obvious confusion. And I'm not wanting to be mean, but IF you are putting out this content (which can be very interesting), it might be a good idea to make a detailed fact check. The more so when dealing with somewhat lurid themes. And I'm aware that does not necessarily come natural to non-professionals, but the scientific names really can help to avoid confusion. You did that even in this video, so you can do it. Sandflies, and once more, vernaclar name referring to several pretty distinct families/species. "Fun" fact about the sandflies aka Phlebotomidae=Leishmania parasites vector, foreign soldiers in the Iraquian war actually were badly surprised be these little critters. They simply had been completely ignorant of their existance and the issues they could cause on the troups (in contrary to the native opponents of course). The military had to adapt and find a solution to protect the soldiers. Phlebotomes are actually very bad fliers, so about 1/2 meter nets around the bases did the job quite well. Also why bites occur mostly on the feet and lower legs. Toxoplasma is a protozoan of microscopic size. I might be a little nitpicking here, put choosing a worm as image could be misleading. That aside, extremely fascinating parasite that, just as you said, without any other issue, can have an influence on your risk taking behavious. Studies have found that the percentage of people carrying the parasite is higher in those engaging in extreme sports relative to the average population. Toxoplasma btw does the same to mice. They get bolder, less fearful and are more prone tapproach cats instead of avoiding them. Which of course benefits the parasite, which wants to end up in the cat's body.

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