Dolphins 2012 Calendar. These beautiful and intelligent marine mammals feature throughout this fantastic dolphin 2012 calendar. There are almost forty species of dolphin and they vary in size from 1.2 m up to 9.5 m. Dolphins are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating fish and squid. Dolphins are considered to be amongst the most intelligent of animals and their often friendly appearance and seemingly playful attitude have made them popular in human culture. With stunning crystal clear photography in all 12 images, this calendar will make a great gift idea for anyone who loves these majestic sea creatures.