What exactly is Polonium-210, and why is it so deadly?
Polonium-210 was allegedly used to murder Alexander Litvinenko, on November 23, 2006. According to Britain’s Health Protection Agency, traces of polonium were found in his urine, as well as in several locations he had visited shortly before becoming ill.
The following resouces are available from the pbs website
Evolution of Camouflage This website provides a number of examples of how animals have survived by evolving survival mechanisms such as mimicry, camouflage, and disguise.
How the woodpecker avoids a headache . What specialised mechanisms are required in order for a woodpecker to reach and eat insects buried in trees?
Mimicry Survival often requires the mechanism to mimic the looks and sounds of other living things. This can be used successfully in reproduction, hiding from predators, and ensuring that prey don’t recognise the predator.
The Frustration Principle Survival often depends on a number of desirable traits. This resource looks at the work of Karl Niklas on the evolution of trees.
Here are some useful online resources for a study of ‘Evidence for Evolution’
The following websites provide useful information resources for the evidence for evolution….
Becoming Human is a superb resource.
A fascinating journey through the story of human evolution. Excellent use of multimedia resources. Another gem from The Arizona State University