Step 3: Introduction Key Points

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  1. DNA carries information about how an organism lives and functions.
  2. Organisms leave bits of DNA in the environment in hair, skin, and bodily fluids. This DNA is called environmental DNA (eDNA). 
  3. Organisms don’t have to be present for scientists to collect eDNA that has been left behind. This allows scientists to study organisms that are rare or hard to observe.
  4. Golden moles are difficult to study. There are four species of golden mole in southern Africa. One of these species is endangered and another one is critically endangered or even believed to be extinct.
Image Credit: Nicky Souness
Image Credit: Nicky Souness

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