Source?

https://en.wikipedia.org/wiki/Laboratory_experiments_of_speciation

And how does that prove macro-evolution?

An accumulation of small changes that happen in a short time leads to large changes over a long time.

How is speciation determined

By whether or not the populations can interbreed. If they can interbreed they are the same species. If they can not interbreed they are separate species.

Source?

https://en.wikipedia.org/wiki/Laboratory_experiments_of_speciation

And how does that prove macro-evolution?

Small changes in a short time leads to large changes over a long time.

How is speciation determined

By whether or not the populations can interbreed. If they can interbreed they are the same species. If they can not interbreed they are separate species.

Source?

https://en.wikipedia.org/wiki/Laboratory_experiments_of_speciation

And how does that prove macro-evolution?

Small changes in a short time cause large changes over a long time

That is a tautology that is necessarily true by virtue of logic.

How is speciation determined

By whether or not the populations can interbreed. If they can interbreed they are the same species. If they can not interbreed they are separate species.

Source?

https://en.wikipedia.org/wiki/Laboratory_experiments_of_speciation

And how does that prove macro-evolution?

Small changes in a short time = large changes over a long time

How is speciation determined

By whether or not the populations can interbreed. If they can interbreed they are the same species. If they can not interbreed they are separate species.

Source?

Google 'fly evolution experiment"... Should be very easy to find.

And how does that prove macro-evolution?

Small changes in a short time = large changes over a long time

How is speciation determined

By whether or not the populations can interbreed. If they can interbreed they are the same species. If they can not interbreed they are separate species.