10 June 2010

Mongoose traditions

 behaviourr
http://www.nature.com/nature/journal/v465/n7299/images/465668a-i1.0.jpg


Banded mongoose (Mungos mungo) have been observed to show certain social traditions. Each pup pairs up with an older (escort) mongoose and learn how to imitate them. Two scientists placed an artificial food item (rice and fish contained in a plastic egg) and watched what the escorts did to open the eggs: they held them with their paws and bit into them. Pups observed their escorts and, months later, had learned the technique and could imitate it. Some other escorts did something completely different: they threw the eggs on a hard surface. Well, their pups also learned this technique from their escorts.
-- Nature 465, 668 (10 June 2010)

No comments:

Post a Comment




T H E B O T T O M L I N E

What measure theory is about

It's about counting, but when things get too large.
Put otherwise, it's about addition of positive numbers, but when these numbers are far too many.

The principle of dynamic programming

max_{x,y} [f(x) + g(x,y)] = max_x [f(x) + max_y g(x,y)]

The bottom line

Nuestras horas son minutos cuando esperamos saber y siglos cuando sabemos lo que se puede aprender.
(Our hours are minutes when we wait to learn and centuries when we know what is to be learnt.) --António Machado

Αγεωμέτρητος μηδείς εισίτω.
(Those who do not know geometry may not enter.) --Plato

Sapere Aude! Habe Muth, dich deines eigenen Verstandes zu bedienen!
(Dare to know! Have courage to use your own reason!) --Kant