The Great Pyramids were originally bright white When the pyramids were originally finished, they were plated in and outer layer of white “casing stones”. These casing stones were cut with astounding precision to give a smooth slope to the pyramids, unlike how they appear today with the outer stones more or less forming very large “steps”. The original casing stones were made of highly polished Tura limestone, meant to reflect the sun’s rays, and were accurate within 1/100th of an inch.
Richard Bizley - The scene takes place 500,000 years ago in what is now Boxgrove, near Chichester in Sussex. Homo heidelbergensis is creating a flint axe after the group has successfully hunted a rhinoceros. He is using a deer antler to finish knapping the axe. In the distance is a herd of straight-tusked elephants and some heidelbergensis are throwing stones at a pack of hyenas. The group is quickly butchering the rhinoceros as there are lions in the area.
The Jurassic Period (200 to 145 million years ago) in what is now North Yorkshire, England by Richard Bizley
Criaturas de la orden Lepidoptera-vintage inspiraron por kelzuki
Wild animals of North America, intimate studies of big and little creatures of the mammal kingdom. - Biodiversity Heritage Library
The butterfly book : - Biodiversity Heritage Library pub. 1920
t 8 (1860) - Journal de conchyliologie. - Biodiversity Heritage Library
biodiversitylibrary.org - [Descriptions and illustrations of mollusks : excerpted from The naturalist's miscellany / George Shaw]