| In 1999, Pessier and others identified that Bd, a chytrid fungus, was the cause. |
| Parts of Central America, the tropical Andes of South America, and even Australia, have also all experienced marked losses, in particular due to the impact of the deadly chytrid fungus on amphibians. |
| Habitat loss and degradation is the major threat, but a disease called the amphibian chytrid fungus is also devastating amphibian populations. |
| Infection of an invasive frog Eleutherodactylus coqui by the chytrid fungus Batrachochytrium dendrobatidis in Hawaii. |
| Smooth newts are also potential transmitters of chytrid fungus, because a close relative of the newt carries this disease. |
| Scientists blame chytrid, which kills amphibians by seeping in through their skin and leads to heart failure, for wiping out dozens of species and putting hundreds, maybe thousands, at risk. |
