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RE: NOVA - "The Missing Link"



Dr. Ted Daeschler of the Academy of Natural Sciences of Phila. is one of the
scientists interviewed in this.  He found the oldest known tetrapod fossils
in North America (in north-central Pennsylvania - Devonian age).  [Neat
fossils!]

Allan Edels

-----Original Message-----
From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
MKIRKALDY@aol.com
Sent: Friday, February 22, 2002 4:14 PM
To: dinosaur@usc.edu
Subject: NOVA - "The Missing Link"


Tom Holtz posted on Vrtpaleo about the tetrapod program which will be shown
on NOVA on February 26. I am on their mailing list, so here are the details.

Mary
________

Subj:   [NOVA] "The Missing Link"
Date:   Fri, 22 Feb 2002 2:37:56 PM Eastern Standard Time
From:   owner-nova-online@franz.wgbh.org (NOVA)
To:   nova-online@franz.wgbh.org (NOVA Online Mailing List)

NEW FROM NOVA

_____________________________________________________________________
"THE MISSING LINK"

Broadcast: February 26, 2002
(NOVA airs Tuesday on PBS at 8 p.m. Check your local listings.)

According to the theory of evolution, all four-limbed animals -- everything
from human beings to dinosaurs -- are descended from a single creature, the
first to crawl from water to land. Yet finding that vital bridge between
fish and four legs has proven elusive. A paleontological tour-de-force and
suspenseful scientific detective story, "The Missing
Link" follows a trail of clues from Pennsylvania to Greenland, including the
crucial rediscovery of a tiny fossil jaw that had lain unnoticed in a dusty
museum drawer for decades.

Here's what you'll find online:

    A Brief History of Life
    The first tetrapods, or four-legged creatures, lived during the Devonian
Period. How about the first simple plants? Sharks?
    Insects? Dinosaurs? Get the answers in our illustrated geologic table.

    Diva of the Devonian
    Dr. Jenny Clack, a Reader at the University of Cambridge who specializes
in the fish-to-tetrapod transition, describes what it was like to mount an
expedition to one of the world's most forbidding regions and to discover
fossils there that shook up her field.

    Confessions of a Preparator
    Crack fossil preparator Sarah Finney offers valuable tips including what
you should ask for if a genie suddenly appears, why you need to have
catalogues of rotten teeth, and what you should do if your specimen starts
grinning at you.

    Evolution in Action
    For many, the word "mutation" has a pejorative ring to it. But in
nature, random mutations are a driving force of evolution. In this activity,
change the environment of "living" things and see how random mutations help
them survive the changes you bring about.

Plus Resources and a Teacher's Guide


http://www.pbs.org/nova/link/