Mine got about as big as my ring - fingernail. We had to put him in a bigger container because he outgrew the smaller one. I fed him regular food and I/2 of a cherry tomato everyday.

Smithsonian Prehistoric Sea Monsters

Q: can you put them in tap waer

Please know you can *NEVER* use tap water because of the chlorine and unfiltered substances that occur in the metal pipes which can kill every one of these creatures when they are born. In nature, they live in rain water that collects in pools on rocks in deserts. It has to be SPRING WATER from a bottle or filtered water. Thank you for caring about them

Q: How long do they live?

Well, they're supposed to live about six weeks, I think; but if you're sent a bunch of seed shrimp and water fleas (as I was) they will breed and multiply and pretty much live until you kill them.

Product ID: 253815593

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Details

Size
23x17 inches
Brand
Smithsonian
Theme
Animal
Age range (description)
Kid
Colour
Sea Monsters

📏23" x 17" vibrant poster

🔬STEM-powered prehistoric learning

🦖20X growth from egg

Frequently Bought Together

Smithsonian Prehistoric Sea Monsters 23x17 inches

Animagic Aqua Dragons Hatch 'n' Grow Basic Tank | Build an Aquatic Ecosystem, Watch Prehistoric Pets Hatch & Grow Science Kit | Ages 6+

Description

🦕 Hatch history, grow curiosity, and own a piece of the prehistoric deep!

STEM DRIVEN FUN - Perfect blend of science, technology, engineering, and math for the inquisitive mind.
VIBRANT VISUALS - Includes a stunning 23" x 17" full-color Smithsonian poster to fuel curiosity and decorate your space.
IMMERSIVE HISTORY - Bring a 220-million-year-old sea creature to life right on your desk.
EPIC GROWTH JOURNEY - Watch your prehistoric pet grow over 20 times its original size—instant awe guaranteed.
READY OUT OF THE BOX - No assembly or batteries needed—just hatch and experience the wonder.

Smithsonian Prehistoric Sea Monsters lets you hatch and grow a prehistoric sea creature that expands over 20 times its original size. Designed for ages 8+, it includes a vibrant 23" x 17" educational poster and promotes STEM learning without any assembly or batteries required.

Specifications

Product Dimensions	26.67 x 8.89 x 29.85 cm; 440 g
Manufacturer recommended age	8 years and up
Item model number	52041
Educational Objective(s)	STEM
Number of Puzzle Pieces	1
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
Color	Sea Monsters
ASIN	B00200JX2O

Have a Question? See What Others Asked

can you put them in tap waer

How big do they get

How long do they live?

Are you supposed to take the floating stuff off the top after eggs have sunk?

Common Questions

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€ 66.46

Duties & taxes incl.

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