An international team reasoned there had to be a purpose for sleep. In one of the largest datasets ever collected, they believe they found two functions.
Watches are everywhere on the heath. Look up, look down, look inside; biology runs on time.
Dying actually begins at conception. From the moment of conception the directions for a person’s demise are passed on to every cell.
No one knows how apoptosis came to be, although there are theories. Even the simplest of animals are programmed for it.
What an interesting choice of art. What’s up with that? Goya painted other works on the same theme.