If there are more children than elderly people, the chart will have the shape of a true pyramid. Take 1950, for example. Here, the post-war baby boom generation is clearly visible. Nowadays, only the ...

You can get pyramids with different shaped bases. Triangles, pentagons, hexagons, any shape. And a circle becomes a sphere with just one large, curved face, like a ball. Perfect for, uh ...

Pyramids can help give us an overall picture of a particular food chain. They can represent either numbers of a particular organism or their biomass, which is living tissue. A pyramid of numbers ...

If there are more children than elderly people, the chart will have the shape of a true pyramid. Take 1950, for example. Here, the post-war baby boom generation is clearly visible. Nowadays, only the ...

Why it's incredible: The mountain looks like a human-made pyramid. A mountain that's hidden in a sea of snow in Antarctica looks strikingly like an ancient Egyptian pyramid when viewed from above.