Sir Isaac Newton, or just Newton to his friends (i.e. everyone he's ever met), is a Chartreux, although without pedigree. The all grey cats have powerful jaws and little to say. Legend says that they were bred by monks as companions and mousers, and discretion was a must so that they wouldn't disturb prayers. Newton does not meow like a normal cat, at best he produces a brief squeak that sounds like a cork being twisted out of a wine bottle. He can purr quite loudly however, and behaves more like a dog than a cat. He comes when called and plays fetch. He also enjoys posing for photographs.
Canon 20D with EFS 60mm 1.2:8 Macro, flash