How is a corpse exhumed?

A body may be removed from the earth to make room for others in cemeteries or to discover the cause of an ill-explained death. Bones are removed from the grave and placed in smaller urns, drawers or go to cremation.…

Does every animal have red blood?

Question from the reader – Robson Vilanova Ilha, Sao Sepe, RS No. Most vertebrates have red blood, but there are exceptions. The frog Chiromantis samkosensis, some marine fish (such as Clinocottus analis) and lizards of the genus Prasinohaema have green…

What is the source of the applause?

(20th Century Fox Television/Playback) The act of clapping hands in approval has an unknown origin, but has been around for at least 3,000 years. At that time, the gesture was essentially religious, popularized in pagan rituals of different peoples as…