Dogs are inbred for such desirable characteristics as blue eye color; but an unfortunate by-product of such inbreeding can be the emergence of characteristics such as deafness. A 1992 study of Dalmatians (by Strain and others, as reported in The Dalmatians Dilemma) found the following:

a.31% of all Dalmatians have blue eyes.

b.38% of all Dalmatians are deaf.

c.42% of blue-eyed Dalmatians are deaf.

Dogs are inbred for such desirable characteristics as blue eye color; but an unfortunate by-product of such inbreeding can be the emergence of characteristics such as deafness. A 1992 study of Dalmatians (by Strain and others, as reported in The Dalmatians Dilemma) found the following:

38% of all Dalmatians are deaf.

Explanation:

Since the desirable characteristics in the dogs is blue eye color but the unfortunate by product leads to deafness

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs