You can see a video of Jim Al-Khalili’s presentation at the Royal Society, were he is discussed the relations between Quantum mechanics and biology. (Does nature use Quantum mechanics — of course).
I thought of a simple demonstration that shows that Quantum mechanics applies to biological specimens, even seemingly complex ones. The example involves the quantum behaviour of pain. If a child falls over and it is being watched by it’s parents then it will feel pain and cry. If no one is watching, there will be no pain and the child will just carry on.
I thought there was a V-sauce on youtube about pain… but I seem to have imagined it.
Here is a TED-X talk Lorimer Moseley (at Adelaide)