Both Wolf and Bear said their first word around 7 months and were walking/running by around-a-bout 10 months. However Wolf didn't say another word till around 11 months and at 18 months was evaluated for delays because he didn't have 10 words (had TONS of signs though). Bear on the other hand flat out refused to learn sign and had over 75 words at 18 months as well as using 2-3 word sentences. Now at 2 1/2 he is talking in full sentences with proper grammar and has a vocabulary almost as good as Wolf (2 1/2 years older), his pronunciation leaves a bit to be desired though...