ILuvTTATT, there's many different definitions for species, so a change in a defining characteristic of a species may already make it a new species; however, the usual definition is based on if it's able to interbreed with descendants of the bacteria from which it was derived (the situation is complicated by the fact that bacteria reproduce asexually, or exchange plasmids, etc). I'm sure they're keeping a control of the colony as is was before they started.
BTW, the emergence of a new species and strains is not such a trivial matter if you're a doctor treating a bacterial infection, as you need to know which antibiotic is likely going to be effective against the organism which is causing the infection. Many strains are developing drug-resistance, and the old standby therapies which worked so well in the past suddenly are no longer effective, since the critters have evolved workarounds to the metabolic pathways by which the old antibiotic caused their death. That's the whole problem with hospital-based MRSA infections that you hear about in the news, where super-bugs are evolving "in the wild" due to widespread and rampant use of antibiotics. Thousands of people die annually due to bacterial evolution, even those God-fearing believers who deny the possibility of evolution.
ILuvTTATT asked-
Hi Adamah, or anyone, can you please provide as many possible "missing links" and when they were found?
The old saying in palentology is that every time a new transitional fossil is found, creationists loudly rejoice, since it means that two new gaps are created in the fossil record on either side.
So presenting evidence that satisfies creationists is a non-willing scenario, since it's only becomes an infinite regress; believers constantly move the goalposts, since they're really not engaging in an intellectually-honest manner and not willing to examine the evidence, but only looking for reasons to demand more evidence.
All lines of evolution contain 'missing links' (and are more accurately called transitional fossils), since not surprisingly, not all lineages of organisms have been lining up for millions of years to volunteer to become fossils, as if donating their bodies to science!
Adam