20172:3adolescentadolescent_anthroanthroasinusbeavercomicdonkeyelephantelephantidequidequinefemalefemale_adolescentgrouphairhi_reshorsejennifer_(study_partners)lisa_(study_partners)malemale_adolescentmammalmustelidnightotteroutsideproboscideanragdoll_(study_partners)rodentsarah_(study_partners)sittingstreetstudy_partnersthree_frame_imagethunderouserectionswoody_(study_partners)youngyoung_anthro