KALVENE, Latvia (AFP) — Once a rarity, cows with light blue or dark ultramarine hides may again be glimpsed grazing on the Latvian countryside among the regular brown, black or white spotted cattle.

Sandra Boynton fans will croon over the soft and squishy Moo Cow Book, a plush cow's head whose mouth opens wide to reveal a rhyme printed on six cuddly pages: ""I'm your very own cow/ and I like to ...