I have saw plenty of calendars featuring photos of cats and dogs and I do not say that such calendars cannot be quality and interesting but it seems that people today always want something exciting, unusual, unique and bizarre.
Daniel Borris and his wife Alejandra Borris who is a yoga trainer, have got an idea to combine their love for pets and yoga together and to try to make a calendar from that.
First they made a calendar using dogs from their neighbors, dogs were put and photographed in different yoga positions and after they saw this idea has been accepted pretty well they decided to make also a calendar called “Yoga Cats”.
They claim no animals were injured while taking those photos and all photos and yoga positions which were shown in them were really achieved by animals and all of those are real. [source]