Speaking of strange life-forms, the first known fully anaerobic animal, discovered in 2014: https://en.wikipedia.org/wiki/Spinoloricus_cinziae https://en.wikipe

Speaking of strange life-forms, the first known fully anaerobic animal, discovered in 2014: https://en.wikipedia.org/wiki/Spinoloricus_cinziae https://en.wikipedia.org/wiki/Spinoloricus_cinziae