Evolutionists, how do some organisms slowly evolve and develop traits that their...

[dru]

...life depends on? I can understand horns or teeth slowly getting bigger over time, but some animals have things that can't be slowly developed, such as an insect that emits explosive chemicals to save itself. If just one of those chambers that stores the chemicals was offset, the bug would explode and die. How can it slowly evolve and gain that final product without exploding? Or what about birds that have to keep their eggs warmed at exactly the right temperature with a flap of skin they use between their legs? That flap didn't magically appear one day. It had to slowly appear on the bird over a large course of time right? So how could it develop over a large course of time if the final product is needed immediately to keep the egg warm at exactly the right temperature? The chicks will die inside the eggs without it. They don't have time to wait for evolution to give them what they need. How was that bird able to survive based on the theory of evolution? I understand evolution is all about chances and basically is nature's version of trial and error, but evolution can't happen suddenly right? Well in order for these organisms to survive, they needed these final products to be perfect, correct, and complete, with no in between products otherwise they would die. These creatures can't possibly exist through conventional evolutionary explanations. I don't want to have this question spark hate notes between Atheists and Creationists. I just want a rational explanation from an evolutionists' point of view, please and thank you.

Sources:
Incredible Creatures that Defy Evolution (documentary)

 

[BIGgourami]

"how do some organisms slowly evolve and develop traits that their life depends on?"
If you don't even know the most basic facets of how evolution works, how can you so fervently deny it's existence?

"I don't know a lick about this thing, therefore it doesn't exist..." really?


The answers to your questions are really quite simple if you just stop to think about them, instead of just calling them im possible... (e.g. the bombadier beetle originally used caustic chemicals to irritate predators, and evolved the combination over time, or that birds didn't need to warm their eggs before their flaps developed, and they simply lived in warmer climes, with more protection growing at they moved to colder and colder places (name a single tropical bird that needs to incubate their eggs))

A more thorough debunking of these played out creationist lies (i suggest you watch more up-to-date materials) can found at places like talkorigins.org et al.

"I don't want to have this question spark hate notes between Atheists and Creationists."
the question of evolution have nothing to do with atheists or atheism, so no worries there...