A shrunken head is a severed and specially prepared human head that is used for trophy, ritual, or trade purposes in the northwestern region of the Amazon rain forest

A watch is never seen on a thumb but times have changed thanks to Timex. Timex, in collaboration with Core77, held a global design competition called 2154: the future of time design. So what you are seeing here is the TX54 concept.

It is a disposable clock and calendar that can be worn on the user's thumbnail. The nail clock makes seeing in the dark as easy as pressing down on the end of your thumbnail. Wonder how much this concept will sell. No doubt it’s stylish.

The only known vertebrates without Red blood cells are the crocodile icefishes .