Video S1 from Hierarchical social networks shape gut microbial composition in wild Verreaux's sifaka

Verreaux's sifaka allogrooming at Ankoatsifaka Research Station in Kirindy Mitea National Park, Madagascar. Sifaka regularly groom one another with their toothcombs and tongues to remove ectoparasites. Intimate grooming contacts, particularly near the anogenital region, likely facilitate the direct oral exchange of gut bacteria within groups. Video credit: Amanda Perofsky