It could be anything

I'd bet my bottom dollar this meme was not created by a women. I don't know any who would find it remotely wierd that women live longer than men.

Feel like men should be asking the first question and the second panel be "also men"

It's just guys joking about the stupid shit we do

Usually the one on the right is presented as being something stupid more than unique and quirky.
- This comment section is a bunch of bitches that can't take a joke.
This meme doesn't apply to OP. OP is general observation, not statement of gender norms.
Relatable

God please not this inane "girls vs boys" meme. What are we? 13??? I thought we left this shit on Reddit...

interior crocodile alligator

I drive a Chevrolet movie thea TER.
Well that's gunna be stuck in me head for the next 3 weeks.

Could you not use a slur please

How else am I supposed to fuck a gator? EXPLAIN AT ME THAT, MR GENIUS

Evolution is crazy

I realize this is a meme, but isn't it mostly linked to how many men died in wars last century, which disproportionately skews the numbers?

It's a lot of things in reality. Past numbers are skewed by war, but also men are bigger risk takers, less likely to seek medical care, less likely to seek mental healthcare, more likely to isolate, more likely to drink and use drugs (and when they do, a higher average amount), more likely to commit suicide, and the list goes on.
I want to throw in the following explanations I read (I haven't fact checked them but find them interesting for this post). Women are statistically smaller than men and smaller individuals of a species live longer than larger ones. Men on average have faster metabolisms than women which is said to contribute to faster aging as well.
- The obvious explanation for the life expectancy differential is that girls are more likely to catch a toilet-seat borne disease.
Women recieve better health care.

Would this work? Would the alligator realize something is wrong through some sort of alligator uncanny valley? Do we know?

I know birds tend to be dumb as a brick. Many would mistake a rock for an egg, and crocodile/alligator are their brothers from another mother. So...
- Not all birds are dumb, you have parrots there, so a bit of a bad comparison
I lived for a year in central FL in a little house on a big lake that had a lagoon in the back yard where a momma gator raised her broods, so I would often come home to find 50 or so little alligators sunning themselves. For fun I would try to sneak up on them; my strategy was to stand stock-still and only move towards them a little bit whenever the wind blew. This actually worked and I could usually get right up next to one of them and then I would reach down and tap it between the eyes, at which point it take off into the lagoon which prompted all the other little gators to take off too.
Great fun, until one day I happened to glance down while doing this and thought "huh, I don't remember there being a huge log right there." It was of course the momma gator, about 10' long not counting the tail. That was the last time I ever tried the sneaking-up shit. FWIW alligators really don't ever attack adult humans and they never do on land - but that might just be because nobody (but me) is stupid enough to poke their children in the head.
The BBC used a fake crocodile to get closeup shots of Nile crocodiles.
That being said, I don't think this would work, simply because they aren't going to move like an alligator, and they are doing this stunt with the intent of getting a reaction out of the animal.

Snake? SNAAAAAAAKE?

There is such a better joke to have with knowing that those lizards do not die of old age but instead eventually become too big to support themselves.

They've done studies on this. Single blokes die sooner because they haven't got a Mrs to nag them. "Nag".