Human language sounds may have evolved through oral mimicry of ubiquitous hammering sounds caused by stone age toolshttp://link.springer.com/article/10.1007/s10071-015-0885-x …
-
-
@DegenRolf Good punch line. But a pretty thin theory.Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.