Geez that USAToday article has a terrible name "Was it from space? Or is there a more earthly explanation?". To answer their question: "if yes it came from space then it's still an Earthly explanation because it's clearly human. Even if aliens exist they are fairly unlikely to have visited us - largescale conspiracies need too many people being inhumanly good at keeping secrets and toeing the company line - and almost definitely wouldn't use human tech like solar panels and balloons". Also they failed to capitalise "Earth". So do they mean soil based? I guess the materials would have been mined...
"Do genes control our height?" Sure, genes control everything. As a more practical matter, significant changes in population height in the last century are almost always due to changes in nutrition not genetics. The most obvious place to look at this is Japan where increased meat and diary consumption in the postwar period has lead to the current population being inches taller than their parents and especially their grandparents.
Sure, genes control everything. As a more practical matter, significant changes in population height in the last century are almost always due to changes in nutrition not genetics. The most obvious place to look at this is Japan where increased meat and diary consumption in the postwar period has lead to the current population being inches taller than their parents and especially their grandparents.