Experience an incredible Wonder of Nature in your own home!
Amazing see thru tadpole Morphs into a beautiful baby Frog!
Remarkable Growafrog Kit includes your see-thru Growafrog tadpole which permits study of internal organs and organ systems!
Transparent ‘glass skin’ allows direct observation of LIVING BIOLOGY including a LIVE HEARTBEAT without dissection!
Unbelievable, yet true!
The Miracle of Metamorphosis is an incredible educational experience!
For the past four plus decades Growafrog PROUDLY has allowed Educators to meet core curriculum and (more recently) S.T.E.M. requirements!
Growafrog Kit includes:
- LIVE Grow a frog Kit with see thru tadpole
- Stage One Tadpole Food
- Fun & Fact Booklet pdf
- Serving Spoon
- Clearvue Growafrog Habitat with frame (frame color may vary from pictured)
- Nutri Sand
- Our 4 way Guarantees!
Metamorphosis is sometimes referred to as ‘re-modeling.’ ‘Everyone’ knows what ‘remodeling’ refers to! No contractor’s license required for tadpole remodeling!
The shape and ecology of your Growafrog frog retain nearly none of hallmark features of your tadpole!
The total and complete re-modeling takes place in just 21 days.
Mercifully you may observe metamorphosis in your Growafrog kit with the help your smartphone CAMERA! Just take a video of your tadpole and ‘slow it down’ for frame by frame detailed observation!
Amphibian metamorphosis is under the control of the thyroid hormone thyroxine. The ‘key dietary ingredient’ iodine is necessary for the synthesis of thyroxine and for metamorphosis.
If somehow thyroxine is ‘unavailable’ through dietary deficiency of iodine your tadpole will NOT undergo metamorphosis and will NOT morph into a frog!
No iodine? Your tadpole will remain a tadpole ‘forever.’
By the way, if you are interested in the scientific method and how investigators ‘know this’ we suggest you do a search for ‘surgical, chemical or radiation’ removal of thyroid glands in frogs.
No thyroid gland? No metamorphosis. Biology lessons learned from a tadpole!
The transformation is most accelerated after front arms emerge from beneath your tadpole’s see-thru skin.
Your Growafrog STOPS feeding after the front arms emerge.
All of these extraordinary changes are ‘powered’ by the re-absorption of your tadpole’s tail – which is the sole source of food for the (approximately 11 days) it takes to magically change from tadpole to frog!
START feeding Stage Two Food when the tail is just a ‘stub’ and your tadpole has completed metamorphosis into a frog.
Continue to use spring water for about two weeks as newly morphed froglets are ‘super sensitive’ to water quality.
After that amount of time though you may certainly use tap water treated with Water Crystals – which is FAR less expensive than Spring Water and 100% safe.
Key Metamorphosis Changes:
- Eyes move closer together
- Whiskers disappear
- Wide broad mouth ‘shrinks’
- Optic nerve greatly contracts
- Tail (tadpole fin) disappears!
- Arms and legs GROW!
- Highly coiled intestine shrinks by 75 percent in 8 days!
- Longitudinal tail muscles vastly contract. Tadpole notochord ‘disappears.’
- Diet COMPLETELY changes!
- Tadpole gills ‘disappear’ after metamorphosis.
- Locomotion ‘switches’ from undulating tail movement to ‘swimming’ via arms and mostly via webbing on feet.
For the past four plus decades Grow-a-frog PROUDLY has been the providing captive bred see thru tadpoles for classroom observation.
Every child should be allowed to study tadpole metamorphosis! The observation of tadpole metamorphosis is K-12 core curriculum and a ‘rite of passage of childhood.’
Your remarkable Growafrog Kit tadpole is unique and eats ONLY dissolved food.
Your tadpole is a ‘filter feeder’ and is ALWAYS eating! Every time your Growafrog tadpole opens it’s mouth it is eating and breathing at the same time.
The MIRACLE of metamorphosis is easily observed by studying Grow-a-frog captive bred B.d. negative tadpoles! Growafrog see-thru tadpoles offer a ‘living window to nature.’
Growafrog Kits provide a positive Natural History lesson in classroom while ALSO allowing native declining amphibian populations to remain where they NEED to be – in the pond and undisturbed!
Your Students will THRILL to the observation of metamorphosis!
We have been told that ‘Growafrogs bring light to children’s eyes who are otherwise uninterested in learning.
After the metamorphosis lesson plan is over (sometimes YEARS after the lesson plan is over)
and students return to the classroom where they attended grade school – they are incredulous to find the frog they raised in first grade
is STILL alive after all those years!
Growafrogs are amphibian friends! Why not ‘explore’ life forms?
EVERY child should have the opportunity to observe a tadpole change into a frog!
Growafrog Kits are a ‘favorite’ of students AND teachers!
Metamorphosis is simply a Wonder of Nature!
Enjoy a positive Natural History Lesson in classroom with every Growafrog Kit!
WHY dissect ( and kill ) a living creature when you can STUDY LIFE?
Three Rivers Amphibian Grow-a-frog Kit established 1979!
THANK YOU for teaching the metamorphosis unit!