AFP - Costa Rica is the happiest place on earth, and one of the most environmentally friendly, according to a new survey by a British non-governmental group.

AP - John Fallan's trained eye scans rows of iceboxes brimming with tiger fish and shrimp in a Vietnamese supermarket, searching for one pesky fish that threatens the health of seafood lovers.

AFP - Nigeria's best known rebel group on Saturday threatened to thwart a 10-billion-dollar trans-Saharan gas pipeline linking vast reserves in Nigeria to Europe, but the army vowed to protect the project.

LiveScience.com - This Behind the Scenes article was provided to LiveScience in partnership with the National Science Foundation. If it were up to Jessica Hellmann, insects such as butterflies and beetles would wield just as much conservation clout as traditional conservation icons, such as polar bears, tigers and dolphins.

AFP - The environmental group WWF on Friday urged the Group of Eight industrialised nations to show global leadership by making a commitment to keep climate change in check at their summit next week.

AFP - EU nations and Turkey said Friday they will sign a key intergovernmental agreement in Ankara on July 13 on Europe's flagship Nabucco gas pipeline project, but key issues still need to be resolved.

AFP - Russian Gazprom's recent deal to buy natural gas from Azerbaijan will not endanger Europe's flagship pipeline project Nabucco, Turkey's Foreign Minister Ahmet Davutoglu said here Friday.

Reuters - Oil dropped a dollar to below $66 a barrel on Friday after unemployment data hardened views economic weakness would sap energy demand and that last month's rally was overdone.

AFP - Three African countries on Friday signed an accord to build a 10-billion-dollar trans-Saharan gas pipeline linking vast reserves in Nigeria to Europe.

Reuters - Fossils of three new species of dinosaurs have been discovered in Australia, including a meat-eater larger than Velociraptor from the Jurassic Park movies, suggesting Australia may have a more complex prehistoric past.