At roughly 2-3 months. Photo by Dave Cheng.At roughly 2-3 months. Photo by Dave Cheng.At roughly 2-3 months. Photo by Dave Cheng.At roughly 2-3 months. Photo by Dave Cheng.At roughly 2-3 months. Photo by Dave Cheng.At roughly 2-3 months. Photo by Dave Cheng.About 3-4 months. Photo by Dave Cheng.About 3-4 months. Photo by Dave Cheng.Now at almost 5 months. Photo by Dave Cheng.Now at almost 5 months. Photo by Dave Cheng.Now at almost 5 months. Photo by Dave Cheng.Now at almost 5 months. Photo by Dave Cheng.Now at almost 5 months. Photo by Dave Cheng.