DolphinsDolphins

Dive in to discoveryDive in to discoveryBy By

Zuri FruehZuri FruehStuart Westmorland/ALLSTOCK, INC./Library of Natural Sounds, Cornell Laboratory of Ornithology. All rights reserved.

Wow! Look at a dolphin from Wow! Look at a dolphin from the inside out!the inside out!

Where in the world?Where in the world? Dolphins live in oceans all over Dolphins live in oceans all over

the world!the world!

HabitatHabitat

• Coastal watersCoastal waters

• BaysBays

• LagoonsLagoons

• Some riversSome rivers

Appearance Appearance Dolphins can weigh as little as Dolphins can weigh as little as 50 kg (that’s 110 pounds), or 50 kg (that’s 110 pounds), or

the size of my teacher.the size of my teacher.

Small dolphins are usually about 1.2meters, or 3.9 feet long.

(My teacher is much shorter!)

Dolphins weigh as much as 8,200kg Dolphins weigh as much as 8,200kg (that’s 18,000 pounds), or the size of a (that’s 18,000 pounds), or the size of a

truck.truck.

These dolphins are known as killer These dolphins are known as killer whales and are about 9.8 meters, or whales and are about 9.8 meters, or

32 feet long.32 feet long.

FoodFood

• Dolphins are carnivores, which means Dolphins are carnivores, which means they eat MEAT, mostly fish.they eat MEAT, mostly fish.

• Like bats,Like bats,

dolphins use dolphins use ecoecolocationlocation to find to find their food. The dolphins make clicking their food. The dolphins make clicking sounds and sense where the sound sounds and sense where the sound bounces to bounces to LOCATELOCATE their next meal. their next meal.

Babies and things…Babies and things…

• Mommy dolphins give birth to one Mommy dolphins give birth to one calf (baby) every two years. calf (baby) every two years.

• A male dolphin is called a BULL.A male dolphin is called a BULL.

• A female dolphin is called a COW.A female dolphin is called a COW.

• A young dolphin is called a CALF.A young dolphin is called a CALF.

• A group of dolphins is called a POD.A group of dolphins is called a POD.

Fun Facts: SPEED!Fun Facts: SPEED!

• ““The fastest human swimmer can swim at The fastest human swimmer can swim at 6 miles per hour. The fastest mammal - 6 miles per hour. The fastest mammal - the dolphin - can swim up to 35 miles per the dolphin - can swim up to 35 miles per hour.hour. “ “

Fun Fact: Sense!Fun Fact: Sense!

• The bottle-nose dolphin can hear The bottle-nose dolphin can hear sounds that travel 7 times faster than sounds that travel 7 times faster than what humans can hear.what humans can hear.

• The spinner-dolphin spiralsThe spinner-dolphin spirals

like a football like a football

as it jumps from the water.as it jumps from the water.

Fun Fact: Common mistake!Fun Fact: Common mistake!

• Dolphins are not Dolphins are not fish.fish.

• Dolphins are Dolphins are MAMMALS, like you MAMMALS, like you and me.and me.

I am

NOTA

Dolphin

!

1. How can we keep dolphins safe from 1. How can we keep dolphins safe from

being trapped in tuna nets?being trapped in tuna nets?

2. How can we stop people from 2. How can we stop people from

throwing away plastic can rings?throwing away plastic can rings?

Challenge Issues

Comprehension Questions:Comprehension Questions:

• Are dolphins mammals or fish?Are dolphins mammals or fish?

• What are female dolphins called?What are female dolphins called?

• Where in the world do dolphins live? Where in the world do dolphins live? Name at least 3 places.Name at least 3 places.

• What do dolphins eat?What do dolphins eat?

• Dolphins travel in groups Dolphins travel in groups called________.called________.

• A baby dolphin is called a _________.A baby dolphin is called a _________.

Works Cited PageWorks Cited Page

• Microsoft ® Encarta ® Encyclopedia 2002.Microsoft ® Encarta ® Encyclopedia 2002. © 1993-2001 Microsoft © 1993-2001 Microsoft Corporation. All rights reserved.Corporation. All rights reserved.

• Movie of 2 dolphins jumping out of the waterMovie of 2 dolphins jumping out of the water

• http://http://capelookoutstudies.org/dolphin_movies.htmcapelookoutstudies.org/dolphin_movies.htm

• fin-matching game from the same sitefin-matching game from the same site

• http://capelookoutstudies.org/finmatchinggame.htmhttp://capelookoutstudies.org/finmatchinggame.htm

• more dolphin clipsmore dolphin clips

• http://www.doublemirrors.com/Dvideo.htmlhttp://www.doublemirrors.com/Dvideo.html

• Stuart Westmorland/ALLSTOCK, INC./Library of Natural Sounds, Stuart Westmorland/ALLSTOCK, INC./Library of Natural Sounds, Cornell Laboratory of Ornithology. All rights reserved.Cornell Laboratory of Ornithology. All rights reserved.

Dolphin Surfacing for AirDolphin Surfacing for Air

• http://www.seaworld.org/soundlibrary/soundslibrary1.htmhttp://www.seaworld.org/soundlibrary/soundslibrary1.htm