How did we know the name

We were watching Discovery Channel.    The whales and sharks were all over the screen.   The little one turns around and asks

– “How did the man find whales and sharks?”.  I answer “When men went in ships into deep seas, they found them”.

-“Can man understand what whales and sharks talk?”.  I get a bit careful…I know something is brewing in the little mind…I think and answer “No da, i doubt whether they talk in a language which man can understand easily”

-“So, how did man find the name of whales and shark?”…………I just could not stop LOL   🙂

Life is interesting with young minds around!!