Here are articles about the highly divergent A00-haplogroup. Some of the people on mainland Africa near Bioko might be only one step away from the postulated Bioko marine humans. Their DNA and language are especially interesting.

https://subspecieist.com/human-evolution/shock-from-cameroon-burial-site-rare-haplo-type-afros-may-be-descended-from-another-hominid-species/

https://www.eurasiareview.com/27012020-first-ancient-dna-from-west-africa-illuminates-deep-human-past/

https://www.rootsandrecombinantdna.com/2017/01/a00-cameroon-research-project-and.html

https://www.newscientist.com/article/dn23240-the-father-of-all-men-is-340000-years-old/

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