Example image of eyePlorer eyePlorer map for 'Anus': Animal Human gastrointestinal tract Mouth Amphibian Bird Cloaca Egg (biology) Reptile Sexual intercourse Amniote Monotreme Therapsida Marsupial Penis Vagina Defecation Eutheria Urination Evolution Multicellular organism Deuterostome Protostome Archenteron Blastopore Earthworm Embryo Sphincter Alvus Anal beads Anal bleaching Anal cancer Anal eroticism Anal jewelry Anal masturbation Anal piercing Anal sex Anal vibrator Anal wink Anal–oral sex Anorectal anomalies Anoscopy Ass to mouth Asshole Ben Wa balls Bidet Butt plug Coffee enema Coloanal anastomosis Colonoscopy Colorectal surgery