Should Gender Stereotypes be challenged?

[Homeless Nutter]

Do they? Do you have studies demonstrating that male dogs are more aggressive than female dogs?

http://www.apbc.org.uk/articles/dog-aggression-FAQs

http://thebark.com/content/what-are-diff...emale-dogs

http://www.wikihow.com/Choose-Between-Fe...-Male-Dogs

Here is a basic sites saying statistically males are on average more aggressive than females.

None of those are studies - they're articles, at least in part based on anecdotal experience and guesswork on the part of the authors - apparently dog enthusiasts - as well as references from blogs and such. And none of them seem to be as certain of the claim in question, as you appear to be.

http://www.apbc.org.uk/articles/dog-aggression-FAQs[/url

Both male and female dogs have the ability to show aggression but the statistics show that “entire” (not neutered) male dogs are more likely to show aggression than female dogs or neutered males. Unfortunately this isn’t the easy answer it might appear to be.[...]
Male dogs are not more aggressive than females, but their competitive tendencies might bring them into conflict with their owners more, which may result in aggression if not handled properly.

http://thebark.com/content/what-are-diff...emale-dogs
This one barely mentions aggression - and when it does, it makes sure not to state anything about dogs, but rather bring up behavior of monkeys, ducks and stock-brokers. If there are easily accessible studies of dogs and the influence of testosterone on their aggression - why not just state that?

Testosterone is a powerful drug, and we know it has broad-ranging effects on assertive and aggressive behavior in species as different as rhesus macaque monkeys and mallard ducks (not to mention traders on the stock market, who are more successful if they have longer ring fingers than middle fingers—which is believed to correlate with the production of male hormones in utero. No kidding.)

http://www.wikihow.com/Choose-Between-Fe...-Male-Dogs
This isn't even an article - it's some kind of quick guide for people relatively new to the subject of dogs. Scientific value of information contained here is very limited, to say the least. Still:

Though it’s not necessarily true that male dogs are always more aggressive than female dogs, the additional testosterone present in male dogs (especially male dogs that haven’t been neutered) can lead to more aggression when in tandem with low levels of socialization and obedience training.

And let's not forget that the behavior of domesticated animals is - at least to a certain extent - influenced by humans and quite different from their wild counterparts. Which is something mentioned even in some of the publications you cited.

There’s another possible influence on the behavior of male and female dogs, but this time it relates to our behavior. How much of our demeanor around dogs is based on our expectations of “maleness” and “femaleness”? I don’t know about you, but if I’m honest about it, I find myself strongly influenced by the sex of a dog. I’m not aware that it affects the way I train—I believe that, with good training, individuality trumps sex or breed differences—but I’m sure it influences my perceptions of them in general. Perhaps unconsciously, it has a significant effect on my behavior, and on the behavior of all of us with cultural expectations of how males and females are supposed to behave.

Of course - the above quote is not science. And for that matter - neither is the following:

Call me crazy, but I can’t help but believe there is something inherently different about male and female dogs that is not just a misplaced human attribution, and that goes beyond the obvious differences. My soul mate dog Cool Hand Luke seemed so male to me that I simply can’t imagine him as anything but a—well, a guy. My “real” guy Jim felt the same way too, admitting to a tiny bit of jealousy when we first started dating, an emotion he never felt around my other three dogs, all females.

I'm surprised you would ask for studies demonstrating this[...]

I'm surprised you wouldn't and that you couldn't provide any when asked. Anecdotal experiences and confirmation bias are fun and all, but that's no way to find out whether something is true, or not.

I've had cats all my life and males have bigger territory, fight way more, I've had two ginger tom cats who were the stereotype of this, scars all of their face looking like a cat version of a pirate.
Neutered males tend to show much less aggression and cut down on their territorial behaviour because obviously they don't need to go out prowling for females.

Riiight - let's forget anecdotal experience for a moment and let's find those studies, shall we?...