Brazilian frog thought dead for 50 years shown to be alive

Megaelosia bocainensis, a frog thought extinct for 50 years was found using eDNA which is DNA living organisms left behind in the environment.

It should be noted that a living member of this species was not found. However increasingly this technique is being used with great success, for tracing seriously endangered animals.

It is also thought this technique might be useful in the fight against future viruses and illnesses.

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