"The fact that we can't [determine whether it's wolf or dog] might suggest that it's from a population that was ancestral to ...

The arctic tundra encircles the North Pole, extending from the frozen Arctic in the north to ... those involved with reindeer - move their animals across the tundra coniferous forest biomes ...

From vast ocean habitats to the frozen arctic tundra, there are many different types of ecosystems, each shaped by their unique climate and physical features. This free five-day lesson plan ...

Scientists in northwest Wyoming found remnants of an ancient forest, frozen in ice on a barren tundra in northwest Wyoming. Uncovering the rest of the story is a race against time. The ghostly ...

As winter tightens its grip on North Dakota, the landscape transforms into a vast, frozen tundra.