Negative, the same scientific determination is applied for National geographic, however lacking the peer review process that Journals have it's track record for correcting mistakes is lower.
So it is observable that some publications are more reliable than others when it comes to scientific scrutiny. Now, Nature has one of if not THE best reputation. You have to show the reputation is not deserved. This is not proving a negative. Like I said before, Nature has a track record to back up it's reputation. You have done nothing to tarnish that track record.