Experts are looking at the fuel potential of watermelons as millions of tons of the fruit not sold in the market can be converted to clean-burning ethanol to power cars and airplanes.

Researchers at the United States Department of Agriculture in Lane, Oklahoma made the finding in a study published in the journal "Biotechnology for Biofuels" Tuesday.

Soft drink giant Coca-Cola is testing in the European market a carbonated milk product that contains skimmed milk, cane sugar and fruit flavor.

Called Vio, the 8-ounce drink in an aluminum bottle sells for $2.47 or £1.50 and comes in four flavors citrus burst, peach mango, tropical colada and very berry.

Two protein products are being recalled after knife blades were discovered in containers of each supplement.

The U.S. Food and Drug Administration announced the recalls on Sunday after a knife blade was found in a vial of "Hardcore Energize Bullet." Another blade was found in a vial of "New Whey" liquid products.

The U.S. Customs and Border Protection (CBP) and Agriculture Department (DA) found a new species of pest in a shipment of pineapples from Guatemala.

A CBP agriculture specialist inspecting the 50,000-ton imported fruit cargo in Freeport, Texas found a weevil she could not identify in the pineapples and later learned from the DA, where a specimen of the pest was sent for examination, that it was a new weevil species.

Britain's Queen Elizabeth celebrated her birthday with a credit crunch-friendly meal. The monarch - who turned 83 on Tuesday - shunned her usual lavish Buckingham Palace party in favor of an informal dinner at her son Prince Edward's house to show her subjects she understands the ongoing financial hardship the country is suffering.

A source told Britain's The Sun newspaper: "The queen was determined to keep this very low key by royal standards. There were just 18 in total and several didn't even drink."