The avian navigation system is rather complex, based on many factors, and it even used two aspects of the magnetic field. If, in a given situation, one can show that the receptors in the beak have no effect, that does not mean that they do not have one in another situation! Anaesthesia of the upper…
I hold the view that animals, the ancient peoples and the Aborigines navigate perfectly well without compasses. This we often call a sense of direction. People with a sense of direction very seldom get lost even on dark nights even in unfamiliar territory. Not everyone has a sense of direction but those who do rely on…
See www.arctictern.info see the google tour You can see the tern’s tracks from their breeding grounds in Greenland in the Arctic (in yellow) to their wintering grounds in Antarctica. The white track is the averaged return flight. The terns dawdle down to their Antarctic wintering grounds looking for food etc. The Earth’s Prevailing winds. Note:…
You may be interested in how the data is collected for tracking animals. Biotrack is a British company that helps and advises on the best systems to use. The geolocator is fascinating, it uses The longitudinal estimate of the location of the tag at any point in time is determined with reference to the time of…
In this book he dedicates two chapters to this subject: “Are memories stored as material traces?” and “Are minds confined to brains?” The prevailing idea is that all our memories are stored in our heads. However, there are a lot of problems with this as it does not match the facts very well. The biggest …
www.bbc.co.uk/news/science-environment-17855194 Please look at this link as it covers important ground on Avian Navigation. You will see that one of our heroes David Keays has established that the magnetite structure in the beaks of pigeons does not exist. The magnetic theory still has problems because you cannot navigate using a compass without knowing where you…
Rupert Sheldrake has recently written a book entitled The Science Delusion. In this book he dedicates two chapters to this subject: “Are memories stored as material traces?” and “Are minds confined to brains?” The prevailing idea is that all our memories are stored in our heads. However, there are a lot of problems with this…