Watch it grow at an exponetial rate! ; Hatching dinosaur grower; Brachiosaurus hatching dinosaur egg; Place in water to watch the dinosaur hatch and grow up to four times its origninal size; A fun toy for those interested in dinosaurs; A fun experiment to watch how water absorbtion works; Egg measures 2.5in (6cm) long and 2in (5cm) wide.
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