Updated

International conservation groups have unveiled a list of the earth's most threatened 100 animals, plants and fungi and say urgent action is needed to protect them.

The groups identified the species Tuesday in a report presented to a global conservation forum on the southern South Korean island of Jeju.

The species live in 48 countries and include the Tarzan's chameleon, the spoon-billed sandpiper and the pygmy three-toed sloth.

The Zoological Society of London and the International Union for Conservation of Nature fear the 100 species will die out because they don't provide humans with obvious benefits.

Experts say that focused conservation efforts can prevent the species' extinction in almost all cases.