Apart from the name, how can you distinguish between a ruby and a pink sapphire? Gemologists rarely disagree that, in essence ...

Colorectal cancer may cause blood in the stool, as well as symptoms like: a change in bowel habits lasting more than a few days rectal bleeding with bright red blood a feeling that your bowel ...

A new documentary traces Humphrey Bogart’s development from stage actor to the embodiment of brooding cinematic cool. By Ben Kenigsberg Starring Dwayne Johnson and Chris Evans, this Christmas ...

Red blood cells are disc-shaped cells with no nucleus. They are very small but their flattened shape gives a relatively large surface area which allows rapid diffusion of oxygen.

Ruby is an incredibly durable gemstone if there are no treatment-related durability concerns. - Courtesy Jan Goodman Co. Hardness and toughness Gem and mineral hardness is measured on the Mohs scale.