IMO, Landis is a POS trying to bring Armstrong down with him.
I never believed the victory was legit as he opened up a huge lead out of the blue. Things like that just don’t happen in the TdF.
That's actually "normal" in that sport since about 1/3 of the contestants are actually Sa'ami who appear to have some natural adaptation to the sport (having skied for the last 15,000 years or so hunting reindeer).
Bicycling is different. First of all it's done in warm weather, and there's no advantage to being extra large or very small ~ quite the reverse in fact! Plus, people haven't been riding bicycles for thousands of years, so there's no clear indication of "adaptation" ~