redbox

    ANIMAL NAVIGATION      &  MIGRATION                                                                           Introduction  Early research Mechanisms Remembered landmarks Orientation by the Sun Orientation by the night sky Orientation by polarised light Magnetoreception Olfaction Gravity receptors Other senses Way-marking Path integration Effects of human activity MIGRATION           Animal navigation   is the ability of many animals to find their way accurately without maps or instruments. Birds such as the   Arctic tern , insects such as the   monarch butterfly   and fish such as the   salmon   regularly   migrate   thousands of miles to and from their breeding grounds,   and many other speci...