The patterns stay the same all through the giraffe's life. They're like giant spots. What other animals have spots? Leopards. Leopards never change their spots. Like the giraffes, leopards are ...

"This is a very clear example of how the [Dkk4] gene can affect the number and the size of spots on the animal," Barsh said.

When Ben Alessio visited the Birch Aquarium in San Diego, he found an unexpected clue to an age-old biological question: How ...

After a few more years, mottled spots begin appearing ... where tour companies lead dolphin-spotting cruises. The animals have been studied extensively since 1985 by the Wild Dolphin Project ...

"This is a very clear example of how the [Dkk4] gene can affect the number and the size of spots on the animal," Barsh said. Although mutations in Taqpep and Dkk4 can modify spots and stripes ...