Re: Stephen Jay Gould and Progress

Eugene Leitl (
Thu, 9 Jan 1997 09:28:02 +0100 (MET)

On Wed, 8 Jan 1997, Robin Hanson wrote:

> Maximum brain size has been increasing, just as maximum body size has
> been increasing. But I don't think there is any more evidence for a
> local tendency in brains than there is in bodies.

I think there is some evidence for "progress":

- animal cerebralization quotient has risen
- taxa longevity has risen, indicating risen adaptation to a broader range
of life habitats

> Robin D. Hanson