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Explore efforts to decrease the use of pesticides by genetically engineering resistance in plants. Viewers also consider the debate over the benefits and risks of genetically modified organisms. Part of "The Botany of Desire" series.
(Source: DCMP)
New scientific evidence suggests that some wolves evolved into dogs by domesticating themselves, and not by humans taming them. Features evidence that dogs have traveled and been buried with humans since prehistory, adapting to every climate and evolving into many subspecies or types of the same dog species. Human cultures might not have evolved as they did without the help of the dog, our most cherished and probably first domestic animal companion.
Scientist He Jiankui will likely go down in history as the first human to genetically engineer another living person. In this segment, host Trace Dominguez talks with Hank Green about the science and ethical issues of genetically altering humans. Part of the "Uno Dos of Trace" series.
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.
One of the major challenges in robotics is designing robots that can move over uneven, loose, or unexpected terrain. With support from the National Science Foundation, computer engineer Luther Palmer and his team at the Biomorphic Robotics Lab at the University of South Florida are designing computer simulation models for the next generation of robotic legs, and then building them in the lab. The team studies the biomechanics of animals adept at running on rough ground to program the algorithms that power their computer simulations. Part of the National Science Foundation Series “Science Nation.”
Most people see a vegetable when they see a spinach leaf, but in this lab, they see the potential to create heart tissue. Students at Worcester Polytechnic Institute are training to be leaders in bioengineering, and they are thinking outside the box to develop practical, commercially viable technologies that fulfill critical unmet needs. Part of the "Science Nation" series.
The National Science Foundation in cooperation with the Marinette Marine Corporation (MMC) and the University of Alaska, Fairbanks has successfully launched the R/V Sikuliaq, a next-generation global class research vessel. MMC is the Wisconsin shipyard that built the ship, with funding provided by NSF through the American Recovery and Reinvestment Act of 2009. UAF's School of Fisheries and Ocean Sciences will operate the ship as part of the U.S. academic research fleet. The new vessel's name, Sikuliaq, pronounced “see-KOO-lee-ack,” is an Inupiat word meaning young sea ice. Part of the National Science Foundation Series “Science Nation.”
After the end of the last ice age 10,000 years ago, populations of marine stickleback fish became stranded in freshwater lakes dotted throughout the Northern Hemisphere in places of natural beauty like Alaska and British Columbia. These little fish have adapted and thrive, living permanently in a freshwater environment drastically different than the ocean. Stickleback bodies have undergone a dramatic transformation, some populations completely losing long projecting body spines that defend them from large predators. Various scientists, including David Kingsley and Michael Bell, have studied living populations of threespine sticklebacks, identified key genes and genetic switches in the evolution of body transformation, and even documented the evolutionary change over thousands of years by studying a remarkable fossil record from the site of an ancient lake ten million years ago.
Dr. Jeffery Friedman introduces the genes and circuits that control appetite, including the key role of leptin. Part of the 2004 Howard Hughes Holiday Lecture Series.
Researchers Randy Jirtle and Rob Waterland work with agouti yellow mice to study the implications for cloning, nutrition, and disease research. Their research has been called one of the most important studies of the 21st century. It is hugely significant for understanding the relationship between genes and the environment.
With recent advances in genetic and reproductive technology, couples can now rely on science to avoid giving birth to children with various genetic conditions. Explores the medical and ethical dilemmas that two couples face as they plan the birth of a child who may inherit their own genetic condition (dwarfism in one case, cystic fibrosis in the other). Bioethicists question the use of technology to ensure parents give birth only to a healthy child. NOTE: Includes footage of a baby being born via Caesarian section.
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 single gene disorders which cause genetic diseases like cystic fibrosis, fragile X syndrome, and muscular dystrophy. Part of the Science Video Vocab series.
Part of the "Inside the Living Cell" series. Illustrates how genetic instructions carried on DNA are transcribed into RNA, leading to the production of specific enzymes that control the thousands of biochemical processes occurring in living cells. Provides an overview of the protein basis of life, enzymatic reactions, amino acids and DNA, how proteins are built, and gene activation.
From fossil evidence, it appears that life may have existed on Earth as early as 3.5 billion years ago. This suggests that life must have evolved sometime during Earth's tumultuous first billion years. How did life evolve? What did early forms of life look like? Topics covered include protocells, endosymbiosis, prokaryotes, eukaryotes, evolution, heredity, variation, natural selection, genetic drift, and gene flow. Part of the "Biology" series.
New developments in gene editing reveals that wild plants can be put on the fast track for domestication and the grocery store. Advances in astronomy have captured the inner working of the rare star known as luminous blue variables. Other segments include the use of macrophages to help heal injured muscles and new evidence shows that wildlife is thriving in the suburbs. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
Presents general information about the scientific method and identifies its steps. Gives simple examples of how it is used in daily life and restates the steps several times.
Genetic and neurological research has led to increasingly sophisticated medical capabilities, resulting in a growing number of moral and ethical quandaries. Surveys recent milestones in biology, many of which have produced as much controversy as insight. Reporting on the newly identified anti-aging gene SIR2 and the cross-species implantation of stem cells, it also inquires into artificial limb technology, the dynamics of the teenage brain, and the storage of environmental toxins in the human body. A visit to the American Bible Belt, including Kentucky's Creationist Museum, highlights the ongoing debate over human origins.
In this episode, host Dianna Cowern details her trip to CERN in Geneva, Switzerland. During her visit she explores particles and learns more about the Large Hadron Collider. Part of the "Physics Girl" series.
In biology, a chimera is a single organism whose body is made from parts of two or more genetically distinct individuals of the same species. Biological chimeras were once thought to be rare, but modern genetics has shown that these genetic mashups are more common than previously thought. Part of the "It's Okay to Be Smart" series. Please note this title discusses human reproduction.
Scientists are using a hummingbird robot to explore places that drones can't reach. Other segments include a new genomic resource for improving tomatoes, a promising new battery to store clean energy, and new evidence that adding carbohydrates to mammal's diet changed their genes and saliva. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
Showing collections 1 to 2 of 2
Biology related concepts
A collection containing 59 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
