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TYLER LYSON: Even though I've collected thousands and thousands of dinosaur bones and other fossils, every fossil that I find, it's just quite a thrill because you're the first person ...
Earth’s temperature is affected by a process called the greenhouse effect, which is how the atmosphere keeps our planet’s surface warm. This process begins with energy from the sun, which is m...
[SCHRAG:] OK. But that still doesn't really answer our question. It doesn't really explain how did Venus this get this way, why is Mars this way, and why has the Earth persisted in this...
SEAN CARROLL: For life to survive, it must adapt and re-adapt to an ever-changing Earth. New traits and capabilities must be invented, while some traits may be lost. [SNAKE HISSING] ...
SPENCER WELLS: Only a small number of human beings live like this today. But from the time our species evolved some 200,000 years ago until the not-too-distant past, all of us lived as ...
JOHN SHEA: Those are nice principles. But let me give you a demonstration of this. Imagine if you will, that this is a depositive sediment. So this little ant farm-like deposit is an a...
In eukaryotes, DNA transcription begins when general transcription factors bind to the promoter region of the gene. Those transcription factors facilitate the binding of the RNA polymerase enzyme to t...
So shown here are three of some of my favorite viruses, I picked them for no apparent reason other than they look really cool. I've scaled them all to about the same size for easy viewing and despite ...
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