In biology the relationship of what eats what and how energy passes through an ecosystem is called a food chain. Pyramids can help give us an overall picture of a particular food chain. They can ...

Egypt’s Pyramids of Giza were built to endure an eternity, but how remains one of the ancient world’s greatest mysteries.

Mysterious hieroglyphs written in red paint on the floor of a hidden chamber in Egypt's Great Pyramid of Giza are just numbers, according to a mathematical analysis of the 4,500-year-old mausoleum.

In biology the relationship of what eats what and how energy passes through an ecosystem is called a food chain. Pyramids can help give us an overall picture of a particular food chain. They can ...