It is said that fleas can jump the equivalent to us leaping over St. Paul's Cathedral and it is famously quoted that cheetahs can run at speeds of 70 miles per hour. But are these claims really true? The discovery of the world's most elastic natural protein in insects and the development of a hi-tech tracking collar have helped reveal the true facts. So can these creatures really achieve what should be physically impossible?

This program profiles the relationships between parent genes and offspring by defining genotype, phenotype, dominant and recessive traits, and simple and complex traits. It also considers how advances in biomedical research and technology have created a path to prevention against diseases.

Evolutionary biologist and master skeleton builder Ben Garrod discovers how the skeleton has adapted for vertebrates to move on land in a remarkable number of ways. They can swing through the trees, slide on the forest floor, dig through dark subterranean worlds and run at speed across the savannahs. Garrod explores the role of the spine in both cheetahs and snakes, shows how adaptations to the pentadactyl limb have helped gibbons and horses thrive...

Sneezes are a reflex usually caused by foreign particles irritating the nostrils. This videoidentifies factors that lead to sneezing, the purpose of a sneeze, and what happens in the body during a sneeze.

A dichotomous key is a tool for classifying organisms based on how similar they are to each other. It involves asking a series of questions, each with only two possible answers.

An incredible multi-function organ that science is still learning so much about. It's adapted to allow animals to conquer virtually every habitat on the planet. In this episode, Professor Ben Garrod reveals groundbreaking new science and amazing specialist insight as he discovers how human skin is an ecosystem in its own right, playing host to demodex mites that might redefine our understanding of human ancestry. He explores the new science that could...

One in every 100,000 sets of twins is born joined together. Some will be separated by complex, often risky surgical procedures. But what causes twins to be born this way? What can doctors do to help them? And what are the prospects for those who have no option but to spend their lives joined together? Filmed in the United States, South Africa, Russia, and Poland, this documentary tells the story of some of the most dramatic recent separations of conjoined...

This program examines such plant hormones as abscisic acid, auxin, cytokinins, ethylene, and gibberellins. It defines apoptosis and discusses its role in developing and adult organisms; its initiation, looking at intrinsic and extrinsic pathways; and the cell destruction process. The program also looks at the difference between apoptosis and necrosis and examines apoptosis malfunctions and human diseases.

This awesome game is great for TEACHING latitude and longitude and world geography. In Coordinates, students learn latitude and longitude while learning the locations and names of the world's nations. First, students are prompted to find the latitude coordinate. Once the latitude coordinate is found, the game locks the latitude position and the longitude lines animate into the map. Finally, students are prompted to find a point of longitude. If the...

Do you believe in ghosts, or do you think these supernatural beings are a figment of one's imagination? Psychologically speaking, are they just hallucinations? Whether or not these entities truly exist cannot exactly be proven. While most of these illusions are a result of how our brain and eyes respond to each other, we have also learned to create many tricks through science, technology, and art. It is fascinating to discover and relearn these old...