With its loose, bunchy skin and sun-starved complexion, the naked mole-rat (Heterocephalus glaber) recalls an uncooked bratwurst dried on permanent press—and it might be one of the last creatures ...

It doesn’t happen too often, but after a vote that took place earlier today near Paris, science textbooks really will have to be rewritten. At the Congress Chamber in the Palace of Versailles, ...

Molar mass is the mass of one mole of a given substance, typically expressed in grams per mole (g/mol). It is a fundamental concept in chemistry that helps relate the mass of a substance to the amount ...

Many headlines and stories (including some of ours) have been saying that a "double agent" infiltrated al-Qaida in the Arabian Peninsula and foiled a plot to get another underwear bomb aboard a ...

A mole is a colored spot on your skin caused by a high concentration of pigment-producing cells called melanocytes. The medical term for a pigmented mole is a melanocytic nevus, or simply nevus.

When a new mole appears, or a previously stable mole begins changing, this could be an early warning sign of cancer. But what about when a mole disappears? Moles sometimes fade or disappear, ...

Moles form on your skin when clusters of melanocytes, or pigmented skin cells, grow in small, concentrated areas. They usually appear as colored bumps or spots that vary in shape and size and are ...