Photos of an incredible sand sculpture as it progressed through creation.

Adults who learn new tricks such as juggling can improve the "wiring" of their brains, British scientists said on Sunday.

"We tend to think of the brain as being static, or even beginning to degenerate, once we reach adulthood," said Heidi Johansen-Berg of Oxford University's department of clinical neurology, whose study was published in the journal Nature Neuroscience on Sunday.

"In fact we find the structure of the brain is ripe for change. We've shown that it is possible for the brain to condition its own wiring system to operate more efficiently."