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來自 University of Illinois at Urbana-Champaign 的課程

Emergence of Life

56 個評分

University of Illinois at Urbana-Champaign

Emergence of Life

56 個評分

How did life emerge on Earth? How have life and Earth co-evolved through geological time? Is life elsewhere in the universe? Take a look through the 4-billion-year history of life on Earth through the lens of the modern Tree of Life! This course will evaluate the entire history of life on Earth within the context of our cutting-edge understanding of the Tree of Life. This includes the pioneering work of Professor Carl Woese on the University of Illinois Urbana-Champaign campus which revolutionized our understanding with a new "Tree of Life." Other themes include: -Reconnaissance of ancient primordial life before the first cell evolved -The entire ~4-billion-year development of single- and multi-celled life through the lens of the Tree of Life -The influence of Earth system processes (meteor impacts, volcanoes, ice sheets) on shaping and structuring the Tree of Life This synthesis emphasizes the universality of the emergence of life as a prelude for the search for extraterrestrial life.

從本節課中

Orientation

In this module, you will become familiar with the course, your instructor, your classmates, and our learning environment.

Emergence of Life Trailer3:09

與講師見面

Bruce W. Fouke, Ph.D.
Director of the Roy J. Carver Biotechnology Center
Department of Geology, Department of Microbiology, and Institute for Genomic Biology

[SOUND] I'd

like to invite you to join me on a journey of exploration.

Over in going around the planet, the deepest parts of the oceans,

the hottest and largest volcanoes on the planet and the outer reaches of the solar

system to understand fundamentally how life is evolved planet earth.

The emergence of life will be built upon the work of Carl Rose at the University

of Illinois whose provided us for the brand new frame work for

how to understand life changes to geological time.

And how evolutionary processes have creative the amazing diversity that we

have now in planet Earth.

>> He was able to trace back microbial life all through its roots.

And at that time, nobody had thought this would ever be possible.

>> Prior to Rose's work, it was thought that there really just two kinds of life.

>> The ideas we're wrong and still are wrong in our textbooks, as you know.

[MUSIC]

>> My first thought was this isn't even a poker real and

this continued and my excitement grew.

What was this beast?

>> And we had to understand that our principals of evolution had to evolve.

And they evolved with the data.

>> We're going to use some brand new approaches and

they're approaches where you don't need to be a scientist.

You need to simply be a citizen on planet Earth which I think is most of you.

And you have to have an open mind about learning about new things.

And looking at things which you soon have been well understood which in

reality are just beginning to be understood.

What does this mean exactly?

Well, we're going to be seeing meteors hit the planet, forming the moon, and

causing a lot of what lived on planet Earth to go

extinct multiple times through geological history.

We're going to see bacteria, the small organisms that we take for

granted actually rise to dominate what the chemistry of the Earth is and

provide us with oxygen We're going to see dinosaurs rule the planet.

But then evolving to birds and

have those birds still part of our present day lifestyles.

We're going to see primates that evolved into humans.

And we're going to see humans then move forward and

fundamentally impact the structure and composition of a planet Earth.

And we're even going to look at NASA space programs and

think hard about sending a postcard with information about who we are to other

unknown things that are living throughout the solar system.

So please join me on this journey of discovering adventure and

looking at things we take for granted everyday with a whole new light.

And seeing how evolution has crafted and carved this beautiful planet

Earth is composed of and then using that to look for life throughout the cosmos.

>> Evolution is bigger than life, way bigger than life.

You have evolution first then you think about life.

>> A hundred years down the line people will know William's name

just like we know Darwin's name.

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