Let's say a human Druid uses Wild Shape to turn into a Rat, which has 30 ft. Darkvision.
The Wild Shape description says (emphasis mine):
You retain the benefit of any features from your class, race, or other source and can use them if the new form is physically capable of doing so. However, you can't use any of your Special senses, such as Darkvision, unless your new form also has that sense.
Humans don't have any kind of Darkvision. Does "also" mean that the human Druid actually won't gain the Darkvision, being in the Rat shape?