What is a "kind"?

So, when you said this in Message 204 in the thread TOE and the Reasons for Doubt You meant that the tarantula and the balck widow are different kinds.Also, you said this in the same messag: So, they're also different kinds.

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I hunt for the truthI am the one Orgasmatron, the outstretched grasping hand
My image is of agony, my servants rape the land
Obsequious and arrogant, clandestine and vain
Two thousand years of misery, of torture in my name
Hypocrisy made paramount, paranoia the law
My name is called religion, sadistic, sacred whore.
-Lyrics by Lemmy Kilmister of Motorhead

No problem.The best definition for species I think is this:Creatures that interact together in the wild, and can interbreeed and produce fertile offspring.Kinda close to your "kind" definition.Bear in mind though that there are always exceptions though. (bacteria for instance)

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I hunt for the truthI am the one Orgasmatron, the outstretched grasping hand
My image is of agony, my servants rape the land
Obsequious and arrogant, clandestine and vain
Two thousand years of misery, of torture in my name
Hypocrisy made paramount, paranoia the law
My name is called religion, sadistic, sacred whore.
-Lyrics by Lemmy Kilmister of Motorhead

Again, you bring up the argument that when it can breed, it's the same kind.Yet when you are asked about two spiders who can't breed with one another, you say they're still the same kind.So, just to be clear, if they can't breed they're a different kind, even if they are two spiders, dogs (wolves), salamanders, etc.?

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I hunt for the truthI am the one Orgasmatron, the outstretched grasping hand
My image is of agony, my servants rape the land
Obsequious and arrogant, clandestine and vain
Two thousand years of misery, of torture in my name
Hypocrisy made paramount, paranoia the law
My name is called religion, sadistic, sacred whore.
-Lyrics by Lemmy Kilmister of Motorhead