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What happens to the body during sleep? Explores the mystery of REM sleep, shows a computer display of the waves that sweep across the brain during sleep, and presents extraordinary footage of a cat "acting out" its dreams. The analogy of comparing sleep to a ship on automatic pilot graphically illustrates how some functions must and do continue while the conscious brain is asleep.
(Source: DCMP)
Explores the strange and relatively unknown world of sleep-a world in which we spend approximately one-third of our lives. Shows how the discovery of REM (Rapid Eye Movement) during our dream period in the early 1950s by Dr. Nathaniel Kleitman at the University of Chicago brought about an understanding of the mechanism of sleep. Before his discovery, it was believed that during sleep the brain was in a state of rest. Also, overviews the nature and frequency of dreams and nightmares, and sleep disorders such as insomnia, apnea, and narcolepsy that affect millions of Americans.
Physical activity and quality sleep are both vital for healthy bodies, as well as healthy brains. Viewers learn the relationship between activity, boredom, and sleep and how each plays a role in healthy development of children. Part of "The Brain" series.
With support from the National Science Foundation, neurologist Ken Paller and his team at Northwestern University are studying the connection between memory and sleep, and the possibilities of boosting memory storage while sleeping. A lot of the evidence has shown that slow-wave sleep is particularly important for some types of memory, and Paller’s goal is to better understand the fundamental brain mechanisms responsible for memory. And that, in turn, may help people with memory problems, including those who find themselves more forgetful as they age. Part of the National Science Foundation Series “Science Nation.”
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on the important invention of the assembly line which grew from developments of the Industrial Revolution. Part of the Social Studies Video Vocab Series.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, Alarick's country is very strange. It has been many days now that night has not fallen, and no one seems to be worried. Moko decides to head towards the horizon to see what is keeping the sun from setting and Alarick goes with him. Along the way, Moko tries to lull the sun to sleep with a lullaby from his country. The sun looks like it will set, but stops short and rises again. Perhaps the ocean is frozen at the horizon and is keeping the sun from setting. He decides to ask the fishermen and one of them responds that the world is filled with such mysteries and that it is more precious for him to learn the secrets of his friend than that of the sun.
All animal species undergo a process of constant change. Those that survive do so because they perfect certain strategies that enable them to develop successfully in their environment. Discovers that conditions in the environment determine which abilities animals develop, and introduces survival strategies such as camouflage, poison, symbiosis, parasitism, and adaptation. NOTE: Contains nudity.
For nearly 40 years, Dr. Ellen Ketterson and her research team from Indiana University have been studying juncos in the mountain forests of Virginia. This segment introduces viewers to the junco, the researchers, and the core methods they use to study birds. Set in field, lab, and aviary locations, one landmark study is highlighted in detail: a long-term field experiment investigating the complex effects of the hormone testosterone on behavior, physiology, and evolutionary fitness. Part of Ordinary Extraordinary Junco (Chapter 2).
In response to one of the worst wildfires in Colorado history, scientists from Warner College at Colorado State University are leading a large-scale wildfire impact study. The study will provide critical data to communities still grappling with the destruction caused by wildfires. Some issues they will study include water quality, erosion, and ecosystem restoration.
Amy Battocletti is a Navy veteran who was awarded an NSF Graduate Research Fellowship in 2014. She’s a doctoral candidate in biology at Georgetown University, conducting research on the impact of genetic variation within plant species in salt marsh ecosystems. Part of the Scientists and Engineers On Sofas Series.
Neuroscientist Cindy Moss is investigating how animals use sensory information to guide their behavior. Her team at Johns Hopkins University's "Batlab" is currently focused on bat echolocation. The group aims to better understand how these highly specialized creatures perceive and navigate their world. Part of the "Science Nation" series.
Sea turtles, salmon, and sharks sometimes travel the width of the ocean to return to their "breeding ground" to reproduce. With funding from the National Science Foundation, Biologist Ken Lohmann at the University of North Carolina -Chapel Hill studies the role magnetic fields play in these long distance migrations. In his lab he's done behavioral studies, manipulating environmental cues to see how young turtles respond to even small changes in magnetic fields.
The parakeet starts with a monologue about the pleasure of eating. The first guest, the pork, says he can't sleep because the sloth wakes him up every night with phone calls at indecent hours. The sloth says that since he changed his diet he has so much energy that he can't sleep. The fleas present a documentary about the way humans eats. The celebrity guest, a burger commercial clown, tells us how the pressure of fame took him to an eating disorder.
New research reveals that loss of sleep leads to increased anger. Researchers are now studying the link between loss of sleep and aggressive behavior. Other segments include bacteria that consume greenhouse gases, a handy robot glove, and drones mapping marine megafauna. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
Many outlet glaciers in Greenland feed ice from the land into fjords, where discharge of icebergs and melting of the glaciers by warmer ocean waters contribute to rising sea levels. David Holland of NYU studies what happens in the fjord when ice meets water. He also studies how the dynamics at the margin between ice and sea are changing, and what those changes could mean in the future for global sea level rise. Part of the National Science Foundation Series “Science Nation.”
Freshwater mussel species are critical to river ecosystems. But, many species are in trouble. Nearly 70% of freshwater mussel species are considered threatened in some way, according to zoologist Caryn Vaughn at the University of Oklahoma. With support from the National Science Foundation, Vaughn studies the role mussels play in freshwater ecosystems. They work hard filtering impurities from the water. The major problem for freshwater mussels now is habitat fragmentation and channelization by dams.
Gabriela, Manuel and Leonardo are three friends who accidentally start a rocket that takes them to space. Their journey through space takes them to different planets and strange worlds. Throughout their journey, they have the help of Maqui, an on-board computer. Maqui helps them learn about the universe. The kids and Maqui see a strange space object, it looks like a spaceship. Maqui studies it and discovers that it’s a space station. The space station was created for all kinds of scientific research: physics and biology investigations, astronomic monitoring and studies on human beings in space. The kids land in the station and meet its commander, a computer called Inteligentis.
Researchers who discovered the pygmy sloth never got close enough to take its picture, but one photographer's wild determination brings him within one foot of the sleepy sloth. Eager to learn more about the mysterious life of this rare and elusive creature, Wild Chronicles follows National Geographic photographer Bill Hatcher as he mucks through swamps of a wild Panamanian island and climbs high into the treetops of sloth-land. Segment of video from Wild Chronicles Series.
Athletes demonstrate their flexibility in this look at our ingeniously designed muscular-skeletal system. Discusses muscle and bone interaction, their structure, purpose, and function. Comments on technological studies on motion.
Showing collections 1 to 2 of 2
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
