Content Credits

Animals/Animales

Photos and Videos
AP Images
Glow
iStock
Minden
National Oceanic and Atmospheric Administration (NOAA)
National Geographic Stock
pond5
Science Source
Shutterstock
Thinkstock

Biographies

Photos
AP Images
Bogaerts, Rob / Anef
Carl Lender CC2.0
Corbis
George Bush Presidential Library and Museum
Gerald L. Hann
Getty
iStock
Laura Ingalls Wilder Home Association
Laura Ingalls Wilder Memorial Society
Library of Congress
Newscom
North Wind Picture Archives
Photo History
Reagan Library Archives
Red Line Editorial
Richard Tsong-Taatarii/Star Tribune/AP Images
Science Source
Shutterstock
South Texas Archives at Texas A&M
Texas State Library and Archives Commission
Wikimedia Commons

Videos
Cronkite School/Vimeo
Defense Video & Imagery Distribution System
Gerald R. Ford Foundation
Internet Archive
John Karalis/Vimeo
Library of Congress Motion Picture, Broadcasting and Recorded Sound Division
MOAM/Vimeo
National Park Service
Red Line Editorial
Shutterstock
Theodore Roosevelt Digital Library at Dickinson State University
Veritasium Films/Vimeo
WMCT-TV/Vimeo

STEAM

Photos
AP Images
Alamy
AP Images
Bridgeman Images
Getty Images
iStock
Jeff Pachoud/AFP/Getty Images
Johns Hopkins University Applied Physics Laboratory/NASA
Library of Congress
Luke Jerram
Marc Simon Frei
NASA
NASA, ESA, G. Bacon
NASA/LaRC/Rex Features/AP Images
NOAA
Newscom
Rainworks
Science Source
Shutterstock
Sipa USA/AP Images
USDA
US Navy/NOAA
Victor Liu/Solent News/Rex Features/AP Images
Wikimedia Commons

Videos
Internet Archive
iStock
NASA
Shutterstock

Video Music
Bensound
Purple Planet Music