Communication is a pretty universal trait among creatures in the animal kingdom. Dogs bark, cats meow, birds chirp and dolphins click . But human beings can write, talk, tweet, text, BBM, Face Time, e-mail, call and more. Do we overdo it or what?
Some of these newer technologies have replaced older forms of communication — we miss you, carrier pigeon — but the medium isn't the most important thing. The fact that we're able to transmit and receive messages is.
In an effort to examine and explore the far-reaching world of human communications, moo.com  has assembled a history of human communications through the ages. The infographic starts with cave paintings and ends with Twitter. There's a whole lot of good stuff in between tweets and cave paintings, so check out the full infographic below.
Click to enlarge in full.