Sheep are evolving

Goodness gracious; sheep may not be as dumb as I thought. Either that, or they're evolving.

From the BBC:

Hungry sheep on the Yorkshire moors have taught themselves to roll 8ft (3m) across hoof-proof metal cattle grids - and raid villagers' valley gardens.

The crafty animals have also perfected the skill of hurdling 5ft (1.5m) fences and squeezing through 8in (20cm) gaps.

...

Dorothy Lindley, an independent district councillor in the former textile town on the edge of the Pennine uplands in West Yorkshire, said: "They lie down on their side, or sometimes their back, and just roll over and over the grids until they are clear.

"I've seen them doing it. It is quite clever but they are a big nuisance to villagers.

Hey, you know, that's pretty clever. Especially for sheep.

(with thanks to TwistedChick of LiveJournal for this link)