Could their be anti dark matter?
No one is sure what dark matter really is to begin with. All we know is that it interacts with ordinary matter through gravity. We hope it also interacts through the weak force. Many candidate theories of dark matter have anti-matter partners. But who knows, maybe it's like light, where it is its own anti-particle. Just have to wait and see.
I think dark matter is a SUSY particle
That is just a hypothesis at present. But SUSY particles would have anti-matter counterparts iirc.
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