This was just the standard Bara performance. He consistently confuses "looks a bit like" with "actually is," all the while insisting that there's no such thing as pareidolia. The supreme example of his delusion came last May, when in a different podcast he said he knew these exhibits weren't just rocks because "rocks have very specific shapes." Er... I don't think that's really true, Mike.
It was such standard stuff that I wouldn't be writing it up at all if Bara hadn't strayed off the over-beaten path of Martian artifacts into areas of genetics and physiology. "The human race originally came from Mars," he said, and produced two items of pseudo-evidence. The genetic part was "Our DNA is alien." How does he know that? Well, it's simple. It's often said that human and chimpanzee genomes differ by only 10% (actually it's more like 4%note 1) but 10% amounts to 650 billion base pairs, and you can pack a lot of alien information into that. He didn't get around to actually saying how he knew that the extra genetic information came from Mars rather than, say, from seven million yearsnote 2 of adaptation to life on the ground instead of in the trees, and/or exposure to very different food sources and disease threats.
Adapting to Mars
The physiology part was this: Astronauts in space, he claimed, tend to adopt a Martian-style circadian rhythm 40 minutes longer than 24 hours. I don't know where he got that pseudo-data from, and it's highly suspicious because astronaut circadian cycles are highly controlled. By default, NASA astronauts stick to Houston time simply because that makes life easier for ground controllers. Unless there's some compelling reason to do something at what would be 3 a.m. in Houston, sleepy time is scheduled in synch with Central Time. The fact that astronauts very seldom sleep the full eight hours is a slightly different story.
I can say with certainty, moreover, that there's absolutely no evidence that humans are more comfortable with the Martian day length rather than the boring old 24 hours of Mother Earth. The truth is the converse--and I know that because the science teams controlling Martian rovers from Pasadena have a very hard time adjusting, as they must, to the Martian day. Shifting through two time zones every three days turns out to be a very hard routine to keep up: It leads to irritability, lack of concentration and all-around decreased performance. I remember reading an excellent article in Scientific Americannote 3 about this. Seems it became a serious problem at JPL, especially when rover operations stretched longer than expected. The Pathfinder mission, for example, was initially expected to last seven days but ultimately ran to 85. Nobody had planned for it. Joy Crisp, now a principal scientist at JPL, said "I just remember getting to day 30 and thinking, 'I can't keep this up.'" The article continues:
NASA leaders claim they have become more sensitive to the issue over the years. Andrew Mishkin, who helped plan the Curiosity mission, says that for the first time NASA officials decided to put a definitive three-month cap on Mars time. They also scheduled people to work no more than four days in a row, encouraged employees to monitor their own and their colleagues' fatigue levels, and had Human Resources prowl the lab for zombied workers to send home. "But everybody was pretty tired of it by November," when the 90th sol finally set, Mishkin says. And when NASA officials wanted to extend the Mars schedule past the 90th sol because the rover was running behind schedule, they put it up to a democratic vote: The answer was a resounding "No."So I reject Mike Bara's idea, on technical grounds. I'm not even going to mention how totally daft it is to hypothesize an intelligent race of Martians who escaped catastrophe by emigrating to Earth. Oh well, perhaps I'll mention it after all. IT'S BUNKUM, MIKE BARA.
 ref: Comparing the human and chimpanzee genomes: Searching for needles in a haystack. Ajit Varki and Tasha Altheide in Genome Research:2005. 15: 1746-1758
 The common ancestor was between five and seven million years ago.
 Step into the Twilight Zone: Can Earthlings Adjust to a Longer Day on Mars? Katie Worth, Scientific American 29 January 2013