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This short video explores the stages of decomposition of animal bodies and shows how microorganisms found during the decomposition process can provide useful information for criminal investigators. Through forensic experiments, scientists have shown that it may be possible to estimate time of death by sequencing the DNA from the microbes found on and around decomposing bodies. Part of the "I Contain Multitudes" series.
(Source: DCMP)
Part of the "Life in Aquatic Environments" series. Places many of the organisms into an ecological perspective of hydras, planarians, annelids, aquatic insects, rotifers, protists, and all other organisms that provide food for fish and other vertebrates. Observes adaptations for planktonic life in daphnia and other cladocerans, copepods, rotifers, and planktonic algae. Explores bacterial decomposition, recycling of materials, adaptations for bottom life, and ecological relationships in the bottom community. Takes an underwater look at the highly specialized organisms that live in rapids, under rock communities, and in slower waters. Investigates adaptations for life in temporary wetland environments.
This video explores the fascinating world of microscopic life. It begins by discussing viruses and explaining how they cause disease. Students also learn the importance of bacterial cells and explore the life of protists. Additional concepts and terminology include microscope, vaccine, moneran, decomposition, amoeba, phytoplankton, yeast, algae, paramecium, and protozoa.
Hanna and Olli find a dead butterfly and bury it. Suzie takes them underground to show them the world of decomposition where millions of tiny animals go about cleaning and recycling dead particles. Part of "My Little Planet" series.
Forensic osteological research facilities are outdoor compounds where donated human bodies are studied during decomposition. Using archeological field techniques, researchers discover what happens to human remains when exposed to a number of different environmental conditions. Studying these skeletal remains in different contexts proves extremely beneficial in solving real-life humanitarian and criminal cases. Please note: Preview of this title is highly encourage due the sensitive material covered.
Part of the "Chemistry in Action" series. Chemicals interacting with each other are one of the most fascinating topics in chemistry. Fireworks, burning flares, and rusting all illustrate chemical reactions. Describes the different types of reactions as well as the process of balancing chemical equations. Introduces the following terminology: chemical equations, Law of Conservation of Mass, decomposition and synthesis reactions, replacement reactions, and reaction rates.
Does anyone ever think about the four pounds of garbage they produce every day? Get down to the nitty-gritty and discover the delicate ecosystem of a landfill, including the potentially harmful byproduct methane gas. Viewers follow the stinky trail from curb to dump to uncover the fate of trash and the science behind decomposition. Part of the "Break It Down" series.
At the Body Farm, the dead speak. Follows the world's first open-air crime lab with founder Bill Bass, of The University of Tennessee, for a close-up look at how cadavers decay. As proxies for murder victims, these decomposing bodies are studied in the name of science and the cause of justice. Talks about the factors and biological markers that help pinpoint time since death, including wind and weather, insects and carnivores, fire damage, soft tissue leachate, mold, and bacteria. Presents three homicide cases that hinged on data and expertise gained at the Farm, and shows Ph.D. students using forensic science and body processing. Shows human bodies in a variety of decomposition stages.
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