The term 'adam' is used interchangeably between Adam & Eve...the term represents mankind.
The text states that Adam, the male, named all the animals everywhere.....do you think that he named the elephants, giraffes, penguins, etc, etc..in 24 hrs from the garden? Seems too far fetched for the thinking person.
No...it would have taken him months, or years to do that.....long enough to know that he never came across anyone like himself...