Magnetic Pigs

23 Jun 2016

At http://phys.org/print385809691.html ... some fish have evolved the ability to live on land, such as blennies. One can see fish adapting in an environment of seasonal water holes or streams that dry up in high summer. Sme of them of course bury themselves in the mud at pond and lake bottoms - waiting for the rains to come round again. On islands the situation differs and it seems blennies can live in water and on dry land - which is quite remarkable.

At http://phys.org/print385812333.html ... wild boars and wart hogs also have a magnetic compass (the list keeps on growing) according to an investigation in Europe and Africa. Pig's can't fly but they are guided - programmed to respond to the magnetic field of the earth, north to south alignment.

At http://phys.org/print385795375.html ... Japanese divers, usually women it would seem, have techniques, habits, and similar targets as divers in the Philippines - but where did that connection come from? Does it go back thousands of years to when dry land existed in what is now an ocean? A common culture would seem to suggest so - but how would it have survived unchanged over such a long period of time?

At http://phys.org/print385837137.html ... evidence of domesticated rice going back 9000 years.