I've got this friend who believes with the highest sincerity that sharks are mammals instead of fish. He constantly corrects me with his bullshit theory just by saying that some sharks give live birth. This is the only argument he uses. He doesn't search up information, doesn't give me evidence, he generally gives no backbone to his arguments.
>cold-blooded
>scales
>they can't regulate their own body temperature
Why this idiot ignores the other factors that proves sharks are fish (despite being a shark lover himself), I really don't know. What do I have to show him about sharks that will knock some sense into him?
>>2194126
the fact that sharks have been around for far longer than mammals have existed?
>>2194126
Does he think boas are mammals too?
>>2194136
No. He's just a stubborn, autistic idiot.
>>2194126
That shark is a qt
>>2194131
seriously though, early shark ancestors have been traced to about 455 million years ago while Therapsids only turned up about 285 million years ago
>>2194126
tfw bamboo shark at my LFS
tfw no tank to put it in
tfw it used to be on display in their 100g but is now crammed in a lil display case since I'm guessing no one wanted it
RIP IN PISS
>>2194126
I'm guessing the many live bearing fish are also mammals.
>>2194126
Wait, really? That's pretty silly. What's wrong with him?
There was a friend of mine who used to say coltsfoot is dandelion. I was so mad we maybe even fought. We were 10 or so.
>>2194126
He's probably trolling you
>>2194126
you shouldn't associate with the retarded like that OP