Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site cmu-cs-edu1.ARPA Path: utzoo!linus!philabs!cmcl2!seismo!rochester!cmu-cs-pt!cmu-cs-edu1!rafferty From: rafferty@cmu-cs-edu1.ARPA (Colin Rafferty) Newsgroups: net.origins Subject: Re: Predation, Sort Of Message-ID: <252@cmu-cs-edu1.ARPA> Date: Tue, 30-Apr-85 20:14:37 EDT Article-I.D.: cmu-cs-e.252 Posted: Tue Apr 30 20:14:37 1985 Date-Received: Thu, 2-May-85 06:34:19 EDT References: <981@uwmacc.UUCP>, <511@cybvax0.UUCP> Organization: Carnegie-Mellon University, CS/RI Lines: 30 > > > [Mike Huybensz] > > > The hypothetical first life forms that arose spontaneously could > > > be extremely simple because they could survive in an environment without > > > oxygen, without predation. > > > > What makes you think there was no predation then? (I'm not saying > > that I don't believe it, I'm just wondering why you say this.) > > What would have preyed on the first life forms? In my sentence above, I'm > referring to decomposing organisms such as bacteria and fungi as potential > predators (or competitors) that would eliminate any remaining examples of > early life forms. What about non-organic predators? Why do all predators have to be alive? The first examples of pre-life were groups of proteins (or amino acids, excuse me if I got that wrong) that were able to stay together in a reasonable fashion. There were things such as rough seas and non-organic substances that could "prey" on them. A modern example of that would be a person dying because of exposure. There is no life form killing him, just nature herself. ---- Colin Rafferty { Math Department, Carnegie-Mellon Unversity } "According to convention there is a sweet and a bitter, a hot and a cold, and according to convention, there is an order. In truth, there are atoms and a void." -Democritus(400 B.C.)