nah it's not thqat hard- yep- there's plenty of bacteria- they are all the same 'kind' something like 200 hummingbirds- but 'all' are hummingbirds regardless of the amount of micro-evolutiojn that goes on- they remain the same 'kind' (People often try to discount the noah ark story by claiming "You couldn't fit all the species on the ark'- but Noah didn't have to- just all the 'kinds' on the ark was sufficient, and YES there wqas plenty of room) Lynn had to admit in the end that it was nothing but simbiotic relationship because the facts were exposed- this is something the textbooks won't tell you but if you search, you will find the obscure resports on this- this is one of those reports I've lost and wish I remembered where it was- it won't be easy because when you google eukoroytes/simbiosis, you'll get a ton of evo articles all claiming the same thing- that it proves evo- but there are several reports that showed she had to admit it wasn't in the end buried within those articles.
... People often try to discount the noah ark story by claiming "You couldn't fit all the species on the ark'- but Noah didn't have to- just all the 'kinds' on the ark was sufficient, and YES there wqas plenty of room ... So in 4,300 years the 'cat' kind begat lions, tigers, panthers, hyenas (yes, they are a cat), leopards, jaguar, puma, cheetah, the lynx, caracal, and bobcat, along with your ordinary house cat?
That's some major evoluting!