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Intelligent design is more like engineering: "Here's what we want and here's what it takes to get it." Laboratory eperiments are more along the lines of answering "How did we get here?", "What do we get when we try this?", and "Are the results reproduceable?". Luck plays a part in the latter...

Basically zero is not equal to zero. Even the most improbable of things can happen completely at random once or more than once. Take this 1952 experiment, for example: https://en.wikipedia.org/wiki/Miller-Urey_experiment That relatively simple experiment produced more different amino acids...

Yes, they do. As do a lot of species which can't survive in the environments of either one.

No. They can't survive in the same place at the same time.

You don't even need differences in atmospheric composition to disprove it. An alligator will freeze to death in the arctic and a polar bear will die of heat stroke in the tropics. Like them, dinosours and sabertooths were adapted for very different climates. We are practically the only land...

Oxygen is also very reactive. That free oxygen is going find and attach itself to something that's not already oxidized to hell-and-back fairly quickly. Only fluorine is worse ... There was some free oxygen, but not as much as we have today.

Male hybrids - like mules, another hybrid - are almost never fertile. Ligers and Tigons also have a host of defects, which the article mentions. Their offspring, if any, are often sickly and even worse off. Yeah, different species. Dogs, Dingoes, Gray Wolves, Red Wolves, Coyotes, and Golden...

You can get amino acids from a lightning strike in what we think the primordial atmosphere was like: https://www.sciencedirect.com/science/article/abs/pii/0006300257903669 Toss in hydrogen sulfide and you'll get at least 23 different ones. DNA uses four. Our bodies make only 11 of the 20...

I like to think that God set the rules when the universe was created and then let things happen. Life would have come about according to those rules. Maybe not on Earth, but somewhere in the universe. We're probably not on the only planet with a species discussing the origin of life in the...