The striped pattern arises because the areas of the tulip ... "Let's say there is a heart cell—where does it need to go to meet with all the other heart cells to settle and form a healthy ...

Of the nearly 60 million pet cats in the United States, one of the most common is the classic tabby—a coat pattern that features stripes, dots, and swirls and what looks like an M imprinted on ...

“We noticed that the baby octopuses we were raising seemed to retain the same stripe patterns from the age that the stripes are first visible—the stripe pattern never shifted, it just grew ...