Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!philabs!cmcl2!harvard!talcott!panda!genrad!decvax!hplabs!sdcrdcf!psivax!friesen
From: friesen@psivax.UUCP (Stanley Friesen)
Newsgroups: net.bio,net.origins
Subject: Re: Bipedalism
Message-ID: <1109@psivax.UUCP>
Date: Mon, 21-Apr-86 00:22:56 EDT
Article-I.D.: psivax.1109
Posted: Mon Apr 21 00:22:56 1986
Date-Received: Sun, 27-Apr-86 14:40:44 EDT
References: <487@bcsaic.UUCP> <1002@cybvax0.UUCP> <32@sphinx.UChicago.UUCP>
Reply-To: friesen@psivax.UUCP (Stanley Friesen)
Distribution: net
Organization: Pacesetter Systems Inc., Sylmar, CA
Lines: 21
Xref: linus net.bio:265 net.origins:3004

In article <32@sphinx.UChicago.UUCP> Beth Christy  writes:
>[]
>
>  Humans have no natural enemies and hence do not need
>the speed advantage for survival.  I'm under the impression (although I
>could, of course, be wrong) that there were no species which preyed on
>the bipedal dinosaurs either (or if there were, escape was not the
>dinosaurs' defense).
>
	Much of this is simply not true. Many herbivorous dinosaurs
of the group known as Ornithopods are bipedal and lack any defense
except running. Examples include such famous forms as Camptosaurus and
Hypselophodon. And while modern Humans have no natural enemies, the
earliest Hominids *did*, and they were already bipedal. Our current
lack of predators is due to our success, not the other way around.
-- 

				Sarima (Stanley Friesen)

UUCP: {ttidca|ihnp4|sdcrdcf|quad1|nrcvax|bellcore|logico}!psivax!friesen
ARPA: ttidca!psivax!friesen@rand-unix.arpa