Some people will find the absolute weirdest things to get upset over.

Picking a fight is childish and terrible, if he is upset, although pictures are a trivial thing to be angry over, just talk to you. Believe it or not though, a parent being jealous of their own child isn't that uncommon, it comes from insecurity. From what I understand, if a father is jealous of his kid, it can mean a number of things. One is that he feels the relationship between the 2 of you is being neglected, which is sometimes true. Parents can give all their attention to the child, so much so that it hurts their own relationship. It's important to bond and take care of each other, as well as your child. Also, it might mean that he needs to better develop a relationship with his kid, and spend time with them. He needs to have his own independent relationship with his child, once he has his own strong bond with them, jealousy tends to subside. So sometimes anger over trivial things does come from a legitimate issue or feeling. This being said, his feelings are no excuse to act awful. If he's upset, express that in a mature way, not by throwing a tantrum.

That child is 50% his DNA, if anything he's over-represented and you should replace his photos with pictures of cute kittens and hedgehogs.

That's how it's suppose to be.

Obviously he is more important than your kid. It's not like you personally grew your kid inside yourself for 9 months, and they definitely don't rely on you for shelter (depending on age) and maternal affection, right?

Join the club, Op's hubby, join the club.

Has be brought up this issue before? It's one thing to have pictures of both your spouse and your kids, but if there are overwhelmingly more pics of the kids than the spouse, i can see how the spouse might be a bit jealous. That said, the proper way to deal with it is not to pick a fight but to express his dissatisfaction in a mature manner.

Well you know what they say the more two people are in love the smaller of things they can argue about.

Tell him it's ok, we don't have pictures of him on our desks either.

If you have at least one picture of him on your desk, why is he overreacting? A lot of people have more pictures of their children than of their significant other.