An animal, biped, featherless
There is lots of evidence of the Pythagorean theorem before Pythagoras. The attribution of the rule to him comes centuries after he lived. So likely he worked on codifying and proving the relationship using the Greek deductive and axiomatic system.
Nyaa. si has non english dubs of some show. The tags aren’t always accurate so it might say English translated and actually include English and other dubs/subs