Name: Lice and Human Evolution
Uploaded: undefined
Duration: undefined

Icky and itchy, yes, but lice hold important clues to human evolution.

Lice and Human Evolution

Koch Foundation

NOVA Science Trust Logo

<div class="rich-text"><p>Fossils can tell us a lot about human evolution but still leave many questions unanswered. Now, there's another source of information—though it's not for the squeamish. After sucking our blood for millions of years, lice are suddenly proving their value: Their DNA turns out to hold a treasure trove of clues about our evolution.</p>
</div>

Icky and itchy, yes, but lice hold important clues to our evolution in their DNA.

<div class="rich-text">Icky and itchy, yes, but lice hold important clues to our evolution in their DNA.</div>

Evolution

United States

Northern Mariana Islands

Puerto Rico

American Samoa

Guam

U.S. Virgin Islands

U.S. Minor Outlying Islands

US & Territories

<p>NOVA investigates the story of cannabis from the criminalization that has disproportionately harmed communities of color to the latest medical understanding of the plant. What risks does cannabis pose to the developing brain? How much do we know about its potential medical benefits? As cannabis becomes socially accepted, scientists are exploring its long-term health consequences. (Premiered September 29, 2021)</p><p>Check out a previously recorded panel discussion and audience Q&amp;A featuring experts and producers from "The Cannabis Question" <a href="https://youtu.be/nSTT5RZ_hxA">here</a>.</p>

<p>As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.</p>

The Cannabis Question

A 2006 composite image from NASA's Hubble Space Telescope and Spitzer Telescope shows the chaos of baby stars in the Orion nebula some 1,500 light-years away. Image Credit: NASA/JPL-Caltech/STScI

<p>With the upcoming launch of the James Webb Space Telescope, the Hubble era is gradually drawing to a close. Here are some highlights from the countless wonders Hubble has shown us during its 31 years in space.</p>

10 spectacular Hubble Space Telescope images

A statue of Zheng He at the Sam Poo Kong Temple in Java, Indonesia. Image Credit: Budianto Santosa, Shutterstock

<p>In the 1400s, Zheng He sailed thousands of miles around Asia and Africa in ships the size of soccer fields, spreading Chinese innovations like compasses and gunpowder in the process. </p>

Transcript

Credits

Support Provided By