La Brea Tar Pits: What has emerged from L.A.'s prehistoric asphalt?

Vídeo YouTube por AssociatedPress el 28/10/2013 añadido a Paleo Vídeos > Prehistoria Universal > L.R.2.6 nº 1.

La Brea Tar Pits: A century ago this week, scientists began excavating bones from the La Brea Tar pits. Here are three discoveries that have emerged from the gooey trove of paleontological treasures. [...] csmonitor.com