[CobaltBlue]

So the extra carbonate in the ocean would prevent the CO2 in the atmosphere from being absorbed into the water.

And, given that CO2 is a "greenhouse gas," that would cause the atmosphere to be warmer. And also give green plants something to "breath", so that they could be food for multicellular animal-type organisms.

Makes sense to me. Seems like so much of life on earth depends on strange quirks.

We're (each of us) the descendents of countless generations of beings that actually lived long enough to reproduce! Talk about lucky! How improbable is that?

[Ichneumon]

We're (each of us) the descendents of countless generations of beings that actually lived long enough to reproduce! Talk about lucky! How improbable is that?

On the Talk.Origins USENET newsgroup, someone pointed out that the catchphrase "survival of the fittest" sometimes gave the wrong impression to laymen, and challenged the forum to come up with something about as short but more descriptive.

The winner was, "Every single one of your ancestors scored!"