What is Corythomantis greeningi?
{{Speciesbox | image =Corythomantis greeningi Boulenger, 1896.jpg | status = LC | status_ref =<ref name=IUCN>{{cite IUCN |url=https://www.iucnredlist.org/species/55640/162986533 |publisher=The IUCN Red List of Threatened Species |title= Greening's Frog: ''Corythomantis greeningi'' |author1=IUCN SSC Amphibian Specialist Group |year=2004 |accessdate=January 17, 2022 |volume= 2004 |page= e.T55303A11286222 |doi=10.2305/IUCN.UK.2004.RLTS.T55303A11286222.en}}</ref> | status_system = IUCN3.1 | taxon = Corythomantis greeningi | authority = (Boulenger, 1896) | call= | range_map = |synonyms=*''Corythomantis greeningi'' (Boulenger, 1896) *''Corythomantis schubarti'' (Miranda-Ribeiro, 1937) *''Corythomantis greeningi'' (Carvalho, 1941) *''Corythomantis schubarthae'' (Lutz, 1968) | synonyms_ref=<ref name=AMNH />}} '''Greening's frog''' (''Corythomantis greeningi'') is a [[frog]] that lives in northeastern [[Brazil]].<ref name=AMNH>{{cite journal|access-date=January 16, 2022|publisher=[[American Museum of Natural History]]|journal=[[Amphibian Species of the World 6.0, an Online Reference]] |title=''Corythomantis greeningi'' Boulenger, 1896 |url=https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Hylidae/Hylinae/Corythomantis/Corythomantis-greeningi}}</ref><ref name=Amph>{{cite web|work=[[Amphibiaweb]] |publisher=[[University of California, Berkeley]] |url=https://amphibiaweb.org/species/685 |title=''Corythomantis greeningi'': Greening's frog |author1=Lauren Cassidy|author2= Colleen Kamoroff|author3= Corrina Kamoroff |date=April 20, 2011 |access-date=January 17, 2022}}</ref> The adult male frog is about 7.3 cm long from nose to rear end and the adult female frog is about 8.7 cm long. The male frog weighs about 21 grams and the female frog 41 grams. Its skin is rough and warty. It has chemicals on its skin that scientists think might be poison. The poison might keep other animals [[predator|from eating the frog]]. All adult frogs are brown in color, but the adult female frog has dark marks on her back and the adult m