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It takes five (5) oaks to make a new oak. Why? My explanations (🧵) 
A few days ago I asked the students the following question: how many oaks to make a new oak? It was during a lecture on pollination ecology. I defined an oak as any multicellular genetically unique organism made of oak cells. The answer is blowin’ in the wind.
Of course, they immediately thought about the two parental trees, the maternal and paternal oaks. Oak trees have both male and female flowers, so a single oak can give rise to a new oak following self-fertilization, but this is exceedingly rare.
