ice age

Sea levels were low when much of Earth’s water was frozen in glaciers during ice ages.

These changes happen over tens of thousands of years, and they have been responsible for ice ages.

Such periods of low sea level occurred when more of Earth’s water was locked up in glaciers during ice ages.

Some are immensely destructive, like asteroid impacts, volcanic eruptions, and ice ages—or viruses jumping hosts.

Since the end of the last ice age, the frozen expanse at the top of the world has acted as a protective shield.

None of her last five movies (with the exception of an Ice Age sequel she voiced) has grossed more than $50 million.

Take the case of the American bison: The ice-age bison evolved into the Plains buffalo, Bison bison, perhaps 10,000 years ago.

The IPCC tells us that, on present trends, the earth will warm up faster than at any time since the last ice age.

Even the audience for Ice Age now seems ominous, with all the kids running up and down the aisles.

And there were endless, additional chapters of Step Up, Ice Age, Madagascar, Men in Black—what am I forgetting?

Armed with it he challenges Nature and goes through the Ice Age, which sets the boundary between the white man and the savage.

This volcanic activity appears to have ended before the last ice age.

During the ice age many of these deposits were eroded and others were piled with boulders.

It is plain that steam and hot water had been at work long before the last ice age came.

The Big-Tree groves, he says, are growing in the soil-areas off which the ice first melted at the close of the ice age.