The placenta, once thought sterile, actually harbors a world of bacteria that may influence the course of pregnancy and help shape an infant’s health and the bacterial makeup of its gut, a new study has found.

The research is part of a broader scientific effort to explore the microbiome, the trillions of microbes — bacteria, viruses and fungi — that colonize the human body. Those organisms affect digestion, metabolism and an unknown array of biological processes, and may play a role in the development of obesity, diabetes and other illnesses. (1)

But why believe something is useless?
Why believe anything can be useless?
Why believe something exists with no reason?
Why believe something affects nothing?

At the same time Japanese scientists unveiled a robot with a sense of humour Tuesday, and claimed it was capable of knowing when its jokes had fallen flat. (2)

It seems funny.
And useless…

That reminds me of…

Funny…