Here's why:
* Color Genetics: Labradors come in three colors: black, yellow, and chocolate. The color of the nose is directly linked to the coat color.
* Black Labs: Black Labs almost always have black noses.
* Yellow Labs: Yellow Labs can have either black or brown noses. The darker the yellow coat, the more likely they are to have a black nose.
* Chocolate Labs: Chocolate Labs typically have brown noses.
Important Note: Even within a single litter of puppies, nose color can vary. It's not always predictable.