summer

I prefer the cool nights, and holidays that are associated with the fall. I'm a big fan of Thanksgiving particularly. I like wearing jackets, and clothing more appropriate for the season. I'm also a fan of the leaves on trees changing color. It feels a lot more comfortable than the hot and humid...

Mitochondrial DNA is responsible for energy production in cells. If Mt Hg U is European paleolithic one, existed in Europe during Ice Age, it would make sense to conclude that it was the best haplogroup to have for cold climate. Theoretically it produces more energy, body heat, than others...