Leatherback Trust conservation initiatives throughout Costa Rica and around the world. The Leatherback Trust currently supports conservation projects for the leatherback, green and olive ridley sea turtles in Costa Rica; leatherback and loggerhead sea turtles in South Africa; loggerhead sea turtles in Greece; and hawksbill sea turtles in the US Virgin Islands. Las Baulas National Marine Park was formed by a Presidential decree in 1991 and officially confirmed by law in 1995. Prior to the creation of the park almost 100% of all the sea turtles eggs laid in the region were collected illegally (poaching), but now this has been effectively ended.
Varieties of Chinese their own standard languages. In China, however, Literary Chinese maintained its monopoly on formal writing until the start of the 20th century. The logographic writing, read with varying local pronunciations, continued to serve as a source of vocabulary and idioms for the local varieties. The new national standard, Vernacular Chinese, the written counterpart of spoken Standard Chinese, is also used as a literary form by speakers of all varieties. Dialectologist Jerry Norman estimated that there are hundreds of mutually unintelligible varieties of Chinese. These varieties form a dialect continuum, in which differences in speech generally become more pronounced as distances