Task 1

Read the text and answer the questions.

    Irrawaddy dolphin or pesut Mahakam is easily distinguished because of its unusually short beak, rounded head and flexible neck, which makes creases behind its head.

    The species is found in scattered areas throughout the Indo-Pacific region, occurring from the Philippines to notheastern India. The Irrawaddy dolphin can be found in the following freshwater river systems: Mahakam (Indonesia); the Ayeyarwady, previously called Irrawaddy (Burma); and finally, the Mekong (Laos, Cambodia, and Vietnam). The Irrawaddy dolphin generally inhabits coastal areas and is not found in offshore waters. 

    Irrawaddy dolphins are highly social animals. Groups of this species usually containing 3-6 individuals. they are smaller compared to pods of the other dolphins. Coming to the surface, these curious animals are known to look around and explore the surrounding area. As opposed to other dolphins, they are not very active, swimming slowly with sluggish movements.

    Irrawaddy dolphins are carnivores. The usual diet of this animal includes fish, cephalopods, and crustaceans. 

Source: http:animalia.bio/irrawaddy-dolphin

What do they usually do?