Animals in Danger

1
Animals in Danger

• In the water
• Chapter 5

2
River Dolphins

3
baiji dolphin species

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

4
Dangers to the baiji

• big ships on the river and other noisesare a
  danger
• baijis 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

5
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

6
Did it help?

• 1990 200 baiji found in 2,000 kilometres of the
  Yangtze River
• 20042 found in the river by scientists
• Succesful????? I think NO!!!!

7
River dolphins in the Ganges Riverin India and
Bangladesh
8
Why are the river dolphins in the Ganges River in
danger?

• 10 of the worlds population live near this
  river so it is very polluted
• dolphins cant 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!!!!!

9
Sea Dolphins
10
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

11
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 gtgt 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

12
Blue Whales of Antartica
13
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

14
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