What is Chytridiomycosis?
[[Image:Chytridiomycosis.jpg|thumb|250px|A chytrid-infected frog. Some sick frogs cannot pull themselves right-side-up if they are upside down.]] '''Chytridiomycosis''' is a [[disease]] that can kill [[amphibian]]s, for example frogs. A [[fungus]] causes it. The [[chytrid]] fungus ''[[Batrachochytrium dendrobatidis]]'' causes the disease. Chytridiomycosis has caused more loss of [[biodiversity]] on Earth than any other disease that humans have seen. Chytridiomycosis one reason why there are fewer amphibians on Earth than there were. It has already killed more than 200 species.<ref name=Amph>{{BioRef|amphibiaweb |title=An Overview of Chytridiomycosis |author1= Kellie Whittaker |author2=Vance Vredenburg |date=May 17, 2011 |language= |url=https://amphibiaweb.org/chytrid/chytridiomycosis.html |access-date=March 25, 2024}}</ref> The fungus has decreased the amphibian population by 30% worldwide. Many species are now [[extinct]] because they died of chytridiomycosis. In some species, only a few animals die, but in other species, they all die. This is called 100% mortality. In some species, the frog gets sick but does not die. This frog can carry the fungus to new places where other frogs catch the fungus and die.<ref name=Amph /> The animals can [[infection|catch it from each other]]. The fungus can also live in and spread in water.<ref name=Corn /> The fungus goes into the frog's skin. It lives in the part of the skin with the most of the protein [[keratin]]. The sick frogs stop eating and look and act [[lethargy|very tired and weak]]. Then parts of their skins turn gray and fall off. Some frogs turn red, [[convulsions|shake and cannot stop]], or cannot turn themselves right-side-up when they are upside down in the water.<ref name=Corn>{{cite web|url=https://cwhl.vet.cornell.edu/disease/chytridiomycosis|accessdate=March 24, 2024|website=Cornell Wildlife Health Lab|publisher=Cornell University|title=Chytridiomycosis}}</ref> People have seen chytridiomycosis fungus all over the world, from sea level to 5,348