Climate change and the developments it spurs carry the narrative of the Quaternary, the most recent 2.6 million years of Earth's history. Glaciers advance from the Poles and then retreat ...

Next in the chain come tertiary and quaternary industries, also known as the service industries. Tertiary and quaternary industries tend to be more important in more economically developed countries.

The footprints, which had been attributed to the devil, appear to have been made by four different individuals of differing shapes and sizes, according to a new study ...

There are four main types of industry: primary, secondary, tertiary and quaternary. The type of industry a country specialises in changes over time. There are social, environmental and economic ...

Researchers are learning more about our ancient ancestors who left footprints in volcanic ash dubbed the "devil's trail".

We are focusing on extinct species from Europe and northern Asia, along with some from North America, including: We are using large compilations of carefully audited radiocarbon dates for each mammal ...

Background: Alkyl ester quaternary ammonium compounds (ester quats) are used extensively in fabric rinse conditioners. It is important to document in the literature the outcome of historical ...