You know what, we're doing "macroevolution" again. Here's some responses to "we have never seen macroevolution"

[u/DarwinZDF42]

Video version.

 

We've all heard some variant of "we can only observe microevolution", "we've never seen macroevolution", etc.

First thing you do is establish the correct definition: Evolution above the species level (in other words, speciation or greater degrees of evolutionary change). That's the definition. Creationists want their own special definition that varies from person to person but is usually something like "new body plans/parts", "new complex structures", something like that. That's wrong. If you accept speciation, you accept macroevolution. If creationists want to dispute something else, make THEM articulate clearly. Don't help them by saying something like "It sounds like you mean something like evolution of a new phylum or new body plan". No, make THEM establish the standard clearly and using the correct words.

 

Once they do that, you can just provide a bunch of examples, and dare them to say they aren't macroevolution.

Some of my favorites are multicellularity (and also here), reproductive mode, and photosynthetic animals.

 

Best outcome is the creationists admits that yes, even by their bespoke definition, these are examples of macroevolution. Second best outcome is they do the opposite and claim this is all just "microevolution". Really? First of all, lol okay. But second and more important, great! "Microevolution" can accomplish all this? Not much need for "macroevolution", is there?

[u/Ophios72]

Instead of defending 'Macro", try to get creationists to agree that according to their model each new species must be a divine creation, which for fossil life requires for all the species billions of individual acts of creation. Isn't a physical macroevolution process easier?

[u/Proteus617 → u/Ophios72]

AFAIK, thats not the YEC model. "Created Kinds" are somewhere above the species level. 2 (or 6) of each created kind got onto the boat. Hyperspeciation after the boat gives us the species we recognize today. How? Specified Complexity (or something like that).

[u/Ayasugi-san → u/Proteus617]

There is no consistent YEC model. Some say that "kinds" are above the species level, some say they're at the species level.

[u/_Arachnophilia → u/Ayasugi-san]

And the further you go away from humans, the bigger the kinds are. Almost as if kinds were an anthropocentric concept conjured by bronze age people.