How can recessive traits such as brown fur be passed from generation to generation without any offspring having brown fur?

Recessive traits, like brown fur, can be passed through generations if both parents carry the recessive allele for that trait, even if they express a dominant trait (e.g., black fur). This occurs when the parents are heterozygous, meaning they each have one dominant and one recessive allele. Offspring can inherit the recessive allele from both parents, resulting in a phenotypic expression of the recessive trait, but if both parents carry only the dominant allele, none of the offspring will exhibit the recessive trait despite carrying it genetically. Thus, brown fur can remain hidden in the genotype while skipping generations.