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A Sense of Direction – some more examples
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…
Adaptation and Evolution of Bird Migration
In this paper you find a rather fascinating overview of the migration of Birds. Malik, Y. S., Arun Prince Milton, A., Ghatak, S. & Ghosh, S. 2021 Adaptation and Evolution of Bird Migration. In Role of Birds in Transmitting Zoonotic Pathogens, pp. 3-14. Singapore Springer Singapore. Malik 2021
The eels are back
Suddenly after years of decline the eels are back swimming up the rivers in the west coasts of Europe in their millions. We think that their arrival is the result of a truly remarkable journey from their breeding grounds in the Saragossa Sea off Bermuda. See http://en.wikipedia.org/wiki/Eel_life_history for more history. There is also the Sustainable Eel Group www.sustainableeelgroup.com
Classic navigation
In classic navigation at the beginning of the journey we need to know where we are in order to plot where we are going. If you navigate with a compass you need a map to show you where you are and where you want to go. This then gives you a bearing and distance. With…
Cuckoos – BTO satellite
For those of us following the BTO satellite tagged Cuckoos, we can see Spring is well on its way – three birds have already left their winter locations in the Congo rainforest and are at their stopover sites in West Africa. Later this month, rested and loaded with the fat that will fuel their journeys, they will…
Emperor Penguins
I have always been fascinated and touched by the devotion of Emperor Penguins and their rearing of a single chick in possibly the remotest and severest of environments on the planet. They breed in the depth of the Antarctic winter during 24 hours of darkness in temperatures which range from –20 C to – 50C…