Evolution - From Butterflies To Humans 2of6

The story of animal evolution is marked by key innovations such as limbs for walking on land, wings for flight, and color patterns for advertising or concealment. How do new traits arise? How has the great diversity of butterflies, fish, mammals, and other animals evolved? The invention of insect wings and the evolution of their color patterns are beautiful models of the origin of novelty and the evolution of diversity. This lecture explores how new patterns evolve when "old" genes learn new tricks.

"Old genes learning new tricks" also applies to our own species and the evolution of traits that distinguish us from earlier hominids and other apes: our big brain, bipedal locomotion, and speech and language. The complete picture of human evolution involves new information emerging from the fossil record, genetics, comparative physiology, and developmental biology. Despite immense advances in evidence and understanding, there remains a societal struggle with the acceptance of our biological history and the evolutionary process, the roots of which are discussed in this lecture.

http://www.hhmi.org
http://www.biointeractive.org

Category:

Education

Tags:

• evolution
• speciation
• hhmi
• creationism
• intelligent

[beroan03]

@movies4christ Science is about discovery. We do not know everything there is to know about everything. Yes there are gaps in our knowledge, but science strives to discover how to fill those gaps. Science does not settle for some myth of a god that was made up a thousands of years ago to satisfy their need to understand without evidence. You are arguing a single small gap in our knowledge. There is massive amounts of evidence supporting the theory of evolution. If you are open minded as you s

[ndrthrdr1]

@Movies4Christ You should really stop commenting.  You're only making yourself look foolish.

[djarm67]

@Movies4Christ I guess you were being intellectually dishonest after all.

Thanks for playing. You won a doughnut.

DJ

[djarm67]

@Movies4Christ This is the part where you now concede that the source which misinformed you is unreliable. Unless of course you are being intellectually dishonest.

[djarm67]

@Movies4Christ Metamorphosis did not evolve "in" butterflies. They inherited it. We see all intermediate stages from non-metamorphosed growth to full metamorphosis within insects. The current hypothesis explaining the evolution of insect metamorphosis involves endocrinological changes. Truman, J. W. and L. M. Riddiford, 1999. The origins of insect metamorphosis. Nature 401: 447-452. This provides a comprehensive evolutionary "answer for the butterfly life cycle". Your source has misled you.

[Movies4Christ]

@djarm67

Go ahead.

[djarm67]

@Movies4Christ I repeat, If I can demostrate to you that your statement "Evolution has no answer for the butterfly life cycle" is wrong, are you willing to concede that the source which misinformed you of this is unreliable? Why did you avoid this challenge?

[Movies4Christ]

@djarm67

I can tell you this. I don't take everything at face value. Just show me your theory and we can continue our discussion.

[djarm67]

@Movies4Christ OK. If I can demostrate that you that your statement "Evolution has no answer for the butterfly life cycle" is wrong, are you willing to concede that the source which misinformed you of this is unreliable?

[Movies4Christ]

@djarm67

Sir, it is your video title that contains the words evolution and butterfly - I really don't think I'm asking too much.

However, If you can't demonstrate a viable hypothesis for the evolution of the butterfly life cycle, I do understand.

I may be a believing Christian, and faith has its place in my life, but I'm certainly open to honest inquiry.