2nd GRADE Level 1 Level 2 CHANGING EXHIBIT GALLERY TROPICAL

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Baby AnimalsThere are many different ways for animals to

reproduce or have babies. Mammals take care of

their young, while some sharks lay eggs and never

see their babies. There are babies that look like

their moms and others that look very different.

Explore the Aquarium’s young animals and

discover some of these different life cycles.

Leve

l 1

Leve

l 2

Shar

k Lag

oon

Lorik

eet F

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Shar

k Bab

ies

Jelli

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Seah

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Sea D

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2nd GRADE

aquariumofpacific.org 100 Aquarium Way, Long Beach, CA 90802

•Touchashark•Seeashow•VisitaDiscoveryLab•Askquestions•Havefun!

Things to do

…at the Aquarium

•WriteordrawaboutyourtriptotheAquarium•Consideraclassroomanimaladoption•Visit aquariumofpacific.org/teachers•Keeplearningmore

…back at school

LeBurta Atherton Foundation

With generous support from:

CHAPERONE

GUIDEF I E L D T R I P

Chaperones:Use this guide to move your group through the

Aquarium’s galleries. The background information, guided questions, and activities will keep your

students engaged and actively learning.

This

map

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loca

tions

of

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aby a

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Exhi

bit K

ey:

Mr.

Mom

— Se

a Dra

gons

, Sea

Hor

ses

Egg

Case

s — Sh

ark L

agoo

n, Sh

ark B

abies

, Egg

Cas

esPl

ankt

on —

Jellie

s, Ot

ter F

ood,

Disc

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y Lab

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DiscoveryLab

Whilesomesharksgivelivebirth,manybottom-dwellingsharkslayeggs.Thesharkembryofeedsofftheyolkwhileitdevelopsinsidetheeggcase.Thesecasesarecalledmermaid’spurses.AttheAquarium,wedisplayeggcasesbyremovingasmallpieceoftheoutsidetoshowthesharkdevelopingontheinside.

Guiding questions:Do all sharks lay eggs?Many egg-laying sharks are bottom dwellers. Why?Where are the eggs found?

Activities for students:Go to Shark Lagoon and look for eggs in the water. Ask a staff member to let you feel an egg case. What does it feel like?

Manyinvertebratesbeginlifelookingdrasticallydifferentthantheadultanimalsthatliveinthetidepools.Manystartlifeasmicroscopicdrifterscalledplankton.Bydriftinginthewater,theyounganimalsareabletodisperseorspreadoutinthewater.Canyourecognizeanyantennae,eyes,orotherbodypartsintheanimaldrifters,orzooplankton?

Guiding questions:Jellies are drifters too. What happens to jellies, and other plankton, when the water moves?Did you see any animals at the Aquarium that started out as plankton? (Hint: Many invertebrates start as drifters.)

Activities for students:Share the plankton images below with students. What do you see?

We’vehadmanylorikeetshatchrighthereattheAquarium.Whentheeggsarediscoveredinthenest,theyaretakenbehindthescenestodevelop.Eggsareincubatedforapproximately25daysbeforetheyhatch.Bothparentsandthebabystayoffexhibituntilthenewlorikeetisoldenoughtoliveintheaviary.Ifyouseeabirdwithanorangeringonitsleg,you’vefoundabirdthatwashatchedhereattheAquarium!

Guiding questions:Why do you think the eggs are removed from the exhibit?What other Aquarium animals lay eggs?

Activities for students:How many lorikeet nests can you find in the aviary? They may be in boxes or hiding under a rock.

Seahorse babies Shark babies Drifting babies Lorikeet babies

Seahorsesusetheirprehensile

tails to hold onto algaeandeach

other.

Bamboosharksdevelopinsidethe eggcaseforabout fourmonths.Male sea

dragonscarryeggs on their

tails,ratherthaninapouch.

Hornsharkslaycorkscrewshapedeggsinbetweenrocks

inthekelpforests.

Whentheyarefirsthatched,lorikeetbabiesmaybefedbyAquariumstaff.

Intheir naturalhabitat,

lorikeetbabiesfirstleavethenestafterseventoeightweeks.

Weusuallythinkofthemomastheonewhogivesbirthtothebabies.However,intheseahorseworld,themaleorthedadistheoneresponsibleforholdingontotheeggsforthesixtoeightweeksbeforethebabiesarereadytohatch.Whentheyareready,about 200babiesarereleasedintothewater.

Guiding questions:Are baby seahorses good swimmers? How do seahorses keep from drifting in the water?

Activities for students:Carefully observe the baby seahorses on exhibit. What do you see? What are they doing?

Meroplanktonaredriftersthatonlyspendpartoftheirlifeasplankton.

Theseplanktoncandevelopinto

eitheraseastar,seacucumber,orurchin.