The amazing opposable thumb

Some believe that the thumb - pointing in a different direction from the rest of our fingers - is truly what separates humans from animals.  The thumb allowed for the development and usage of tools.  Tools enabled more efficient gathering of food and the construction of decent shelters. This left time for leisure activities such as the invention of written language, which set us off on the path towards the 21st century...

It would be difficult to envision modern humans without thumbs for pressing the space bar on your keyboard or grabbing on to a cup of coffee!  They also make for terrific first buddies early in life!