OK. The question remains---and you haven't answered it yet---how do we tell from outward appearance what this invisible, spiritual kind is? How do we determine from what is visible which species are of the same kind?
You asked earlier how I can ignore the differences between monkeys and humans. The answer is, I don't. The differences say they are different species.
But you have already agreed that a kind can include more than one species.
Any two species have differences. The question is, when do those differences add up to different kinds?
We are not totally different from monkeys. It is simply not true to say we have nothing in common with them. We have some things in common and some things that are different.
When it comes to chimpanzees (which are no more similar to monkeys than we are) we have a great deal in common with them and few differences.
Is there any way to tell a difference in kind other than by looking at outward appearance or genetic sequences?
How much difference adds up to a difference in kind?
To see it from my point of view it's best to begin at the beginning. You have to imagine or hypothesize a kind, a sort, a large division like a phylum or a class of animals that were created and imagine a number of families within the kind.
Only you can't sort by morphology this time. You have to sort by the way things move ie. swim, fly, swarm, crawl, walk on all fours, walk on two feet and then you can sort by the appearance of the characters that allow them to move about.
But for the purpose of establishing bloodlines and relationships, you have to begin with the kind. You can't just sort by characters.
A kind is a distinct sort, a division, the original group that all members of it's kind belong to but it doesn't mean they are all related by blood. A kind is just a division.
The family would be the original parent population, I think.
But you can use kind and family interchangably. When I say "monkey-kind" I'm refering to the original parent population imagining there is just one. There could have been more than one family but it seems likely there was one. One original gene pool.
Probably two animals were created; a male and a female.
So each family is represented by two animals and there could even be interbreeding within the kind. You could have the bear family which has a dog-like appearance as a result and call it a dog. It would depend on the male; if it was a male dog or a male something else that bred with a female dog. But I'm just speculating. Bears and dogs are pretty distinct in the way they move and what they eat so it's probably they only share a similar character.
OK. The question remains---and you haven't answered it yet---how do we tell from outward appearance what this invisible, spiritual kind is? How do we determine from what is visible which species are of the same kind?
The outward appearance is the reflection of the inward animal; the spirit or life of the thing. You have to imagine its' kind and then you can apply the principles of speciation.
And then you can figure the parent population represented 100% of the gene pool and characters are lost through speciation and natural selection. You start with 100% and lose characters and abilities. Animals fill a niche. Animals go extinct over time.
The species of a kind would have an outward appearance that tells us they belong to the kind. The way they walk is a give away. The shape of the feet, whether they have hooves or not.
All these things are related to genetics and form as well. However since we're made of the same stuff and we can eat and therefore assimilate other animals, it means we have things in common with animals; characters, similar genes.
When it comes to chimpanzees (which are no more similar to monkeys than we are) we have a great deal in common with them and few differences.
Is there any way to tell a difference in kind other than by looking at outward appearance or genetic sequences?
How much difference adds up to a difference in kind?
But monkeys are related to chimps by blood. You can see it in their movements, in what they eat, in their faces, in their bodies, in their feet, in their habitat, in their ability to climb trees and hang onto branches, in the sounds they make.
They can't be related to humans who walk on two feet, who can think logically and rationally, who can invent and create, who don't have a thing about them that looks like it was inherited from the monkey-kind.