Brown adipose tissue is present in small mammals (e.g., mice) and in newborn humans. Most of it disappears in adult humans. The cells in both types of fat are called adipocytes although they differ in origin, structure, and function in the two types of tissue.
On the left hand, index finger. It's not the index finger you wear it on. Left hand, ring finger. The finger that you would wear a wedding ring on.
Diamond engagement rings are a translation of a much older sexist tradition of putting a down payment on oneâs bride. This is, incidentally, still legally the case. In many states a bride-to-be can still sue her fiancÃ©e for breach of contract if he breaks off the engagement, as a Georgia woman did last year.