That biologist would conclude that is an unproven supposition. Further, it is so broad and wrong that it is a strawman you constructed for the purpose of pushing it over.
Glad you don't want to talk about giraffes any more.
You are confused. The fact that such things are unproven supposition, was my thesis, not a strawman for some other argument. The other points I made were examples of why such suppositions should not be presented nor accepted as facts.
What do you have against giraffes?
Your certainty of unknowns, obstinance, and hostility are exactly the nonscientific traits that I'm warning against.