Cambodian premier Hun Sen on Monday ordered the creation of conservation zones on the Mekong river to protect critically endangered dolphins, after three were killed by fishing nets and lines last month.
The Irrawaddy dolphins, known for their bulging foreheads and short beaks, once swam through much of the mighty Mekong but in recent decades have been limited to a 190-km (118-mile) stretch from northeast Kratie province to the border with Laos.
