Volcanologists may soon get a lending paw from a helpful robot called "Anymal." The dog-like machine uses its four legs to walk through uneven terrain – giving it a "leg up" on wheeled vehicles.

POPOCATÉPETL VOLCANO, Mexico — In the predawn darkness, a team of scientists climbs the slope of Mexico’s Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions ...

POPOCATÉPETL VOLCANO, Mexico (AP) — In the predawn darkness, a team of scientists climbs the slope of Mexico’s Popocatépetl volcano, one of the world’s most active and whose eruption could affect ...

POPOCATÉPETL VOLCANO – In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions of ...