As well you should be; it's a bunch of BS.
The basic problems of evolutionism include a short list of things sufficient to demolish any normal theory, i.e. any theory which was not being held for irrational reasons.
Because of the nature of the laws of probability, the likelihood of any new kind of animal arising, with new kinds of organs, a new basic plan for existence etc. is a high-order infinitessimal, i.e. you are talking about a zero-probability event.
Now, it might be one thing to believe that one or two such events had ever occurred in the history of the world, but evolution posits an endless series of such events, i.e. it stands everything we know about probability on its head and requires a believer to pretend that such laws do not exist.
Moreover, natural selection could not plausibly select on the basis of hoped-for or future functionality; all you'd get would be a random walk around some norm for the old function. I.e. you'd have to come up with rationales for why an arm 10% of the way to becoming a wing offered an advantage, and then why an arm 20% offered an advantage over the 10% creatures, and then why an arm 30% of the way to being a wing....
Moreover, in real life, in trying to get to a new kind of a creature such as a flying bird, assuming you somehow miraculously evolved the first necessary new feature, then by the time the second evolved, the first would have de-evolved and either become vestigial or disappeared outright since it would have been useless - disfunctinal the entire while the second was evolving.
Darwininian gradualism has basically been abandoned at this point due to the lack of intermediates in the fossil record and also due to the Haldane dilemma and other problems of population genetics, basically the impossible time spans needed to spread genetic changes through sizeable populations of animals. The new semi-official replacement theory is the Gould/Eldredge notion of Punctuated Equilibria or "punc/eek". Unfortunately it turns out that punc/eek has even worse conceptual problems than the theory it is meant to replace:
It amounts to a pure pseudoscience since it involves a claim that the lack of intermediate fossils supports the theory. In other words, it amounts to a claim that a theory can be valided by a lack of evidence rather than evidence.
It amounts to a claim that inbreeding is a good thing and the source of all genetic advancement.
It ignores the familiar "gambler's problem" and in fact requires yet another kind of a reversal of overwhelming probabilistic laws in requiring tiny groups of animals to repeatedly spread out and overwhelm vastly larger groups, countless billions of times.
It ignores the fact that in real life, globally adapted animals invariably prevail over parochially adapted ones.
Gould and Eldredge do not even talk about a mechanism for the rapid change which must occur amongst the tiny groups of peripheral isolates which they try to claim are the salvation of evolutionism. They leave that up to the reader. That amounts to a claim of magic