By Safi KhanBy Safi Khan

Lifestyles and Habitats

What is a Dolphin

A Dolphin is a marine mammal that evolved from landThey are related to whales.There are almost 30 to 40 species of DolphinsThey vary in sizes and weightThey are found worldwideThey feed on fish and squidThey are among the most intelligent of mammals

Different types of Dolphins

Bottle nosed dolphin

Striped Dolphin

Short finned pilot whale

Hourglass Dolphin

Orka/Killer whale

Black Dolphin

Indo pacific Humpback whale

Amazon River Dolphin

Pigmy killer whale

Different types of Dolphins

33 Different types of dolphins.This is an image of the Bottle nose dolphin.It is the most common.Can grow up to 12 ft.Can also weigh up to 650kg.It eats fish, squid, and crustaceans.Found in temperate seas worldwide.Usually light gray in colour.

Characterised by its blue and Characterised by its blue and white stripes on the flanks, white stripes on the flanks, eyes, back flipper and behind eyes, back flipper and behind the earsthe ears

Have blue, white or pink Have blue, white or pink undersideunderside

Adult weighs from 150-160kgAdult weighs from 150-160kg

Adult length is from 2.4-2.6mAdult length is from 2.4-2.6m

Feeds on fishFeeds on fish

Found in temperate and Found in temperate and tropical climates like the tropical climates like the south Atlantic ocean, south Atlantic ocean, Mediterranean, the gulf of Mediterranean, the gulf of Mexico, the Indian and PacificMexico, the Indian and Pacific

Image No 2:Striped Dolphin.

Also known as the black fishAlso known as the black fish

Adults grow up to 6-8metresAdults grow up to 6-8metres

Adults weigh up to 6 tonnesAdults weigh up to 6 tonnes

They eat fish, sea lions, They eat fish, sea lions, seals, walruses and even seals, walruses and even large whaleslarge whales

They are found in all They are found in all oceans, most seas and oceans, most seas and prefer higher latitudes and prefer higher latitudes and coastal areascoastal areas

Sophisticated hunting Sophisticated hunting techniques. Very social and techniques. Very social and always live in groupsalways live in groups

Image No 3: Orka/killer whale.

Image No 4: Hourglass Dolphin.

It got its name because of the It got its name because of the white design of the main line white design of the main line on its side has the abstracted on its side has the abstracted shape of an hourglassshape of an hourglass

Adult length is between Adult length is between

1.5-1.8 metres long1.5-1.8 metres long

Adult weight can be up to Adult weight can be up to 1000 kilograms which makes 1000 kilograms which makes it one of the smallest it one of the smallest dolphinsdolphins

It eats small fish and squids.It eats small fish and squids.

It is found in the cold waters It is found in the cold waters of the Antarcticof the Antarctic

Image No 5: Irrawaddy Dolphin.

Very light in colourVery light in colour

Its adult length varies Its adult length varies between 2.3-2.75 metersbetween 2.3-2.75 meters

Its weight can reach from Its weight can reach from up to 130 metersup to 130 meters

It feeds mainly on fish and It feeds mainly on fish and fish eggsfish eggs

Found mainly in brackish Found mainly in brackish water and in the Indian water and in the Indian OceanOcean

Brain/Body weight ratio/Intelligence compared to other mammals

SpeciesSpecies Simple brain Simple brain –to body –to body ratioratio

Small birdsSmall birds 1:121:12

HumansHumans 1:401:40

MouseMouse 1:401:40

catcat 1:1001:100

DogDog 1:1251:125

FrogFrog 1:1751:175

SharkShark 1:249601:24960

LionLion 1:5501:550

Comparing Dolphins to other Comparing Dolphins to other MammalsMammals

0102030405060708090

100

Fee

t

Comparing Sizes

Threats and dangers to Dolphins.

The killer whale: They are known to kill their own kindThe killer whale: They are known to kill their own kind

Humans: For food, leather, animal feed, oil. They are also Humans: For food, leather, animal feed, oil. They are also used for entertainment and even the military to find used for entertainment and even the military to find underwater bombsunderwater bombs

Sharks: They are considered to be the worst enemy and Sharks: They are considered to be the worst enemy and predator of the dolphinpredator of the dolphin

They are considered a very intelligent species They are considered a very intelligent species

groups across the world have called on a ban to killing and groups across the world have called on a ban to killing and eating of dolphins chief amongst them:- The Whale and eating of dolphins chief amongst them:- The Whale and Dolphin Conservation SocietyDolphin Conservation Society

Acknowledgement:Acknowledgement:

www.wikipedia.org

www.enchantedlearning.com

animal.discovery.com

Special gratitude goes to the W.D.C.S( The world dolphin Special gratitude goes to the W.D.C.S( The world dolphin conservation society), the global voice for the protection of conservation society), the global voice for the protection of dolphins in Chipppenham United Kingdom, who inspired my dolphins in Chipppenham United Kingdom, who inspired my choice choice