Modern day Filipinos are most closely related to the first known inhabitants (Denisovans) of Australia that arrived approx 40,000 years ago. They spread widely, but then declined, then the modern day Aborigines came in more recently (who were also in decline in most of Australia and wouldnt have lasted much longer. Probably because of their habit of burning everything in sight, and destroying the local habitat until it couldnt sustain them, and then moving on to the next patch to do the same. I havent seen much information on the Denisovans, because apparently it's racists to think about the truth, as modern day Aboriginees have declared themseves the first nation, first people, and all that arrogant nonsense. It keeps the lawyers fed.