Tank is a male from our own Whistle and Purdy. He has been impressive from the day he was born. He is a giant teddy bear but I certainly would not want to meet in a dark alley. Tank is not easy to get to know. He prefers to steer clear of strangers. However, once he knows you, he loves to sit up for chest rubs. He also enjoys being a lap dog. However, one must have a big lap to accommodate his 76# of pure muscle.