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Earth's four seasons are caused by the yearly revolution of the planet around the sun and its tilt.

Earth's interior consists of it's mantle, outer core and inner core layers.

News, features and images of the wild and incredible Earth.

Here's a no-nonsense look at medical discoveries making headlines.

These Behind the Scenes articles were provided to LiveScience in partnership with the National Science Foundation.

Here's to the science that happens between the sheets.

Science for professional athletes and weekend warriors.

Technological breakthroughs and information about big ideas, innovations and the inventors that make progress possible.

News and information about how the mind works and why memory is such a complex affair.

Viruses are submicroscopic parasites that can infect any animal, plant or bacteria

A monkey is a long-tailed, medium-sized member of the order of Primates. The primate order also includes macaques, baboons, guenons, capuchins, marmosets, and tamarins.

Earthquakes are the result of plate tectonics, or shifting plates in the crust of Earth.

Learn about Darwin, the theory of evolution by natural selection and the battle between proponents of so-called creation science and evolution.

Why is your neighbor smarter than you? Are they born intelligent? Science reports on the latest research that shows the genetic and environment impact on your most vital organ.

Sex is about more than just two people, a bed, and a few aphrodisiacs.

Penguins are aquatic, flightless birds. They lay eggs, have feathers and yet are powerful swimmers. Emperor penguins can stay underwater up to 30 minutes, in essence flying underwater.