From the comments, here's something bizarre: creationists (at least the ones at Answers in Genesis) have defined life…and it excludes squid! I have yet another reason to reject the Bible, in this case for disrespecting perfectly wonderful invertebrates. Many scientists make the distinction that vertebrates have hemoglobin, hence red blood, and invertebrates contain other oxygen transporting proteins, like hemocyanins, and do not have red blood. As far as we've researched at this time, all...