Washington's three national parks are all majestic and certainly worth visiting. For those craving towering mountains and ...

Vaccines could be a key means of suppressing bird flu and avoiding the slaughter of millions of chickens, which is blamed for ...

It should come as no surprise that when I head to a tropical island, I am more interested in the mountains than the beach.

A volcano near Alaska’s largest city is showing new signs of unrest, with experts saying the likelihood of an eruption at ...