Pret A Manger’s CEO Clive Schlee was almost wriggling with glee today as he announced a 17 per cent rise in revenue for the food chain.

I hate to start a rave review with a criticism, but 'Little Social' isn't a great name. The jog-trot phonemes suggest something pinched and underfed, like one of those Dickens urchins called Jo or Smike. You might as well call an eating-house 'Vaguely Jolly'. And it's easy to confuse with all its half-brothers in the vicinity.

Demand for sushi is still depleting stocks

A bluefin tuna sold for a record £1m million at a Tokyo auction today, nearly three times the previous high set last year — even as environmentalists warn that stocks of the majestic, speedy fish are being depleted worldwide amid strong demand for sushi.

A deep-blue eyeball the size of a grapefruit washed up on a Florida beach has left wildlife experts puzzled.

Serves 2 but easily doubled

Low levels of nuclear radiation from the tsunami-damaged Fukushima power plant have turned up in bluefin tuna off the California coast, suggesting that these fish carried radioactive compounds across the Pacific Ocean faster than wind or water can.

Serves 2

A bluefin tuna, caught off northern Japan, has fetched a record 56.49 million yen (£473,000) in the first auction of the year at Tokyo's Tsukiji fish market.

Pair drift in the Pacific for 33 days, then discover relatives on a remote atoll

The prospect of farming the endangered bluefin tuna from eggs to fully mature adults has come a step closer with the first natural mass spawning of the species in captivity.

Environmentalists on the Mediterranean sent a small launch this morning to inspect a sea cage to determine whether it was holding tuna, but fishermen attacked them with debris, forcing a return to the mother ship.