By happy coincidence, when taking a break from preparing a lecture on Donald Davidson, I came across this experiment in radical interpretation:
The principle of charity, of course. Elephants would not be considered to have good memories if they did not mostly remember truths. The principle of humanity, maybe. Elephants fit well enough into our lives in some parts of the world that they must be a little bit like us. And let us not forget Schopenhauer on the sagacity of the elephant (Die Welt als Wille und Vorstellung, erster Band, Kapitel 6).
If an elephant could talk, ...