What is Osteocephalus yasuni?
{{Speciesbox | image =Osteocephalus yasuni.jpg | status = LC | status_ref =<ref name=Amph /><ref name=IUCN /> | status_system = IUCN3.1 | taxon = Osteocephalus yasuni | authority = (Ron and Pramuk, 1999) | range_map = |synonyms=*''Hyla yasuni'' Ron and Pramuk, 1999 *''Osteocephalus yasuni'' Lynch, 2006 | synonyms_ref=<ref name=AMNH /> }} <small>''For the Yasuní tree frog, see [[Boana ventrimaculata]].''</small> The '''''Osteocephalus yasuni''''' is a [[frog]] in the family [[Hylidae]]. It lives in [[Ecuador]] between the Rio Napo and the Rio Yasuni. It also lives in [[Peru]] and [[Colombia]]. Scientists have seen it between 180 and 250 meters above sea level.<ref name=AMNH>{{BioRef|ASW6 |title=''Osteocephalus yasuni'' Ron and Pramuk, 1999 |url=https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Hylidae/Hylinae/Osteocephalus/Osteocephalus-yasuni |access-date=July 15, 2022}}</ref><ref name=Amph>{{BioRef|amphibiaweb |title=''Osteocephalus yasuni'' |author1= Morley Read |author2= Santiago R. Ron |editor= Santiago R. Ron |date=August 28, 2011 |language=es |url=https://amphibiaweb.org/species/5860 |access-date=July 15, 2022}}</ref><ref name=IUCN>{{cite journal |title=''Osteocephalus yasuni'' |url=https://www.iucnredlist.org/species/55805/61404624 |website=The IUCN Red List of Threatened Species |page=e.T55805A61404624 |doi=10.2305/IUCN.UK.2018-1.RLTS.T55805A61404624.en |id=55805 |year=2018 |author1=IUCN SSC Amphibian Specialist Group |accessdate=July 15, 2022 |version=3.1}}</ref> The adult male frog is 44–55.7 mm long [[snout-vent length|from nose to rear end]] and the adult female frog 42.6–61.9 mm. The skin on the adult frog's back is the color of coffee with darker marks. The skin on the tops of the feet is also the color of coffee with darker stripes. The belly of the aduly male frog can be bright yellow or cream yellow. The belly of the adult female frog is the color of cream. The iris of the eye is bronze in color with black marks. It is possible to see the bones of the feet through the skin: the bone