Incredible Dolphins - davis.k12.ut.us · PDF filechanges pink and purple. ... As you can see...

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Incredible Dolphins By: Claire

Transcript of Incredible Dolphins - davis.k12.ut.us · PDF filechanges pink and purple. ... As you can see...

Page 1: Incredible Dolphins - davis.k12.ut.us · PDF filechanges pink and purple. ... As you can see dolphins are incredible creatures. They live in beautiful places, there are many different

Incredible Dolphins

By: Claire

Page 2: Incredible Dolphins - davis.k12.ut.us · PDF filechanges pink and purple. ... As you can see dolphins are incredible creatures. They live in beautiful places, there are many different

Table of Contents APlaceofLife…………………………………………………………….……………………...1-3ABottleNose……………………………………………………………………………….…...4-5What’sABoto?......................................................................................6-7ADolphin’sCousin……………………………………………………….……….…………..8-9Cetologists………………………………………………………………………………….….10-11Conclusion…………………………………………..…………………………..…………...12-13Glossary………………………………………………………………….…………………..…14-15

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A Place of Life

Manydolphinsliveinsaltywatersandlargeoceans.TheymainlyliveincoastalwatersnearlargeopenplaceslikeCornwall,England.

Threekindsofdolphinsswiminthefreshwaterrivers,theAmazonRiverDolphin,theBaijidolphin,andtheSouthAsianRiverDolphin.Riverdolphinsaresmallerthanoceandolphinsbutthefreshwaterriver

dolphin’snoseisthreecentimeterslonger.

Dolphinscansmellandhearfood30milesaway.

Abottlenosedolphinandherbabyfindingfood.

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Muddywaterishardtoseein,sodolphinsdependonecholocationtofindtheirway.Echolocationissoundwavesbouncingoffrocks,cavewalls,andotherobjectsthatdolphinscanheartohelpthemnavigate.

Motherdolphinandbabieslookingforahome.

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Riverdolphinshavethreeorfourpredators,oneofthemisananaconda.Becauseriverdolphinsaresmallerthanoceandolphins,predatorscancatchthemmoreeasily.Dolphinsareamazingcreaturesinaplaceoflife!

RiverDolphinsswimming.

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A Bottle Nose

Doyouknowwhyabottlenosedolphiniscalledabottlenosedolphin?Abottlenose

dolphiniscalledabottlenosedolphinbecausethetipofitsnoselookslikethetipofabottle.

Thebottlenosedolphinisthebest-knowndolphinspeciesintheworld.Thisisbecausemostdolphinsinaquariumsarebottlenosedolphins.Bottlenosesmeasureupto13feetlong,andweighasmuchas600pounds!Theylivein

tropicalwaters.Bottlenosedolphinsstaywithin100

Dolphinsliketoswimwhereitisshallow.

Dolphinonshore.

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milesoflandinharbors,baysorlagoons.Somebottlenosedolphinshavebeenlivingthroughouttheirwholelivesinthesamelocation,otherssometimesmigratetootherpartsoftheocean.

ABottlenosedolphin

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What’s A Boto?

ABotoisanothernamefortheAmazonRiverDolphin.ItlivesinSouthAmerica,intheAmazonRainforest.TheyalsoliveintheOrinocoRiver.

WhenababyBoto

isbornitusuallycomesoutawhitecolor.Butwhenitgrowsolderitturnsapinkishcolor.

DidyouknowthatanAmazonRiverDolphin’sbeakcanchangecolors?Itonly

Boto’shavelotsoflittlegraydotsontheirbody.

MotherBotoandbabyswimming.

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changespinkandpurple.Scientistsbelievethatecholocationmakestheirbeakschangecolors.Inthedaytimetheirbeaksarepink,andinthenighttheyarepurple.

Botojumpingoutofwater.

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A Dolphin’s Cousin

APorpoiseisreallysimilartoadolphin.That’swhysomepeoplecallitthedolphin’scousin.

Whatisdifferentaboutaporpoiseandadolphinisthatit

lookslikeawhale.Porpoisesalsohaveshorterbeaksandspade-shapedteeth,whiledolphinshavelongerbeaksandconeshaped.However,Dolphinsareknowntobemoretalkativethanporpoises.

Aharborporpoiselookslikeawhale.

Drawingofaharborporpoise.

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DolphinsandPorpoisesaresimilarbecausetheylookalmostthesameandbothareconsideredtobeverysmart.Theybothhavelargebrainsthathelpthemcommunicateandnavigate.

APorpoiseandaDolphin.

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CetologistsACetologistisascientistwhostudiesdolphinsandwhales.

Thisisaspecialkindofmarinebiologist.

Cetologistshelpdolphinsthataresickandneedhelp.Onetimeadolphin’stailgotbittenoffbya

sharkandcouldn’t

swim.TheCetologistshadtoworkandthink.Theyfinallycameup

Thereareonly195cetologistsintheworldnow.

ACetologisthelpingadolphinwithitsnewtail.

Adolphinpracticingtoswimwithitsnewtail.

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withasolution.Theyusedsomematerialstohelpthedolphinfeelmoreathome.Theyusespecialpaperandothermaterialstomakeatailthatlooksandfeelslikearealdolphin’stail. Cetologistsaredoingimportantworktolearnmoreaboutdolphinsandtokeepthemsafe.

Adolphinswimmingwithanewtail.

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Conclusion

Asyoucanseedolphinsareincrediblecreatures.Theylivein

beautifulplaces,therearemanydifferentkinds,andsomethattheirbeaksevenchangecolors!Therearemanysecretsaboutdolphinsthatnoonehasdiscoveredyet.Hopefullywecanallhelpkeepdolphinssafe,sothatwecancontinuetolearnmoreaboutthem.

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Glossary

Anaconda-alargeSouthAmericansnakefoundonlandandwaterAquarium-abuildingwherefishandotheraquaticanimalsarekeptCetologists-thebranchofzoologydealingwithwhalesanddolphinsEcholocation-asonarlikesystemusebydolphins,batsandotheranimalsMigrate-topassusuallyperiodicallyfromoneregionorclimatetoanotherforfeedingorbreedingNavigate-totravelon,over,orthrough(anareaorplace)TropicalWaters-aplaceoflifeusuallyclosetotheequatorwherethewaterremainswarmPredators-ananimalthatnaturallypreysonothers.