All these races are similar in plumage, differing only in size.

Second, that races differ in everything from their moral worth to their mental abilities.

We may find that their race differs from yours or Teela's.

Do the races differ biologically in terms of drug response or disease susceptibility?

But the race this year differs greatly from the contests he won in 1994 and 1998.

This race also differs from previous incarnations in the number of international sailing stars it has attracted.

The early races differed significantly from today's.

These races differ mainly in the males' facial patterns and the brightness of the yellow underparts.

The races differ in size and plumage tones of the upperparts or underparts.

They are genetically only skin-deep: races do differ in a small number of genes that influence superficial features like skin color.