Animals in Danger In the water Chapter 5

River Dolphins

baiji dolphin species lives in the Yangtze (Chang Jiang) River in China 1950´s = 6,000 baijis they hear very well and talk to other dolphins in past they heard small ships and swam under

Dangers to the baiji big ships on the river and other noisesare a danger baiji´s hit head on big ships towns and factories pollute the river making the water dirty and hard for the baiji to see the construction of the Three Gorges Dam changed the habitat

Trying to help the baiji in 1983 the Chinese stopped hunting river dolphins built a special habitat in the river it was expensive to build the habitat so to earn money the govermnet sold the “baiji” name. Results= baiji drink, baiji hotel, baiji shoes only some of the money helped the dolphins

Did it help? 1990 = 200 baiji found in 2,000 kilometres of the Yangtze River 2004=2 found in the river by scientists Succesful????? I think NO!!!!

River dolphins in the Ganges River in India and Bangladesh

Why are the river dolphins in the Ganges River in danger? 10% of the world´s population live near this river so it is very polluted dolphins can´t move up and down the river because of dams now= 4,000 river dolphins remain in the Ganges River BUT THEY ARE IN DANGER OF EXTINCTION!!!!!

Sea Dolphins

Sea Dolphins live in nearly every sea of the world people eat their meat hundreds of thousands die because they are caught in fishing nets fishing takes away the sea dolphins food

Killer Whales (speciesi n dolphin family) live 50-80 years in sea but only 10 years in a zoo they like cold water their ONLY danger is humans!! pollution goes to sea and kills the whales and whales eat polluted fish and get ill (sick) hunting is a danger >> The Inuit of Alaska hunted killer whales in the past but only a small number after, hunters from other countries with big ships came to hunt the killer whales

Blue Whales of Antartica

Blue whales Biggest whale in the world Live 90 years 1900 = 250,000 1930-1931 hunters killed 30,000 Today = 5,000 DANGER OF EXTINCTION

OTHER SPECIES OF WHALES -other species of whales are disappearing -most countries stopped killing whales but some still do -it is hard to protect the whale far out in the big, big sea