X-Message-Number: 13888
From: "John de Rivaz" <>
References: <>
Subject: Re: freezing frogs
Date: Sat, 10 Jun 2000 17:36:47 +0100

Am I correct in thinking the animals that freeze naturally to avoid the
winter never freeze completely solid?

If such an animal is taken from the environment when frozen and kept
artificially for several years at the same temperature and then allowed to
thaw will it reanimate? [my guess is not]

Sincerely, John de Rivaz
my homepage links to Longevity Report, Fractal Report, my singles club for
people in Cornwall, music, Inventors' report, an autobio and various other
projects:       http://geocities.yahoo.com/longevityrpt

----- Original Message -----
From: CryoNet <>
To: <>
Sent: 07 June 2000 10:00
Subject: CryoNet #13850 - #13856

> I offer my perspective as one who studies biology. I find it most easy to
> infer from nature to deduce what is feasible. We already know what
> cryosuspension protocol works; that which mimics already working systems.
> There are many creatures which naturally undergo seasonal freezing. These
> range from the most simple organisms to the more complex. The most
> complex and most similar physiologically to us which freeze and revive
> are I believe frogs. I can't recall for sure now what sort of
> cryoprotectant the frogs have, but I know that insects produce glycerol,

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