The life cycle of a frog activities make science exciting by turning a simple lesson into something kids can see and understand. From tiny eggs floating in water to tadpoles sprouting legs and leaping ...

The evolutionary transition from fish to land animal is paralleled by the transformation of an aquatic tadpole into a frog. Essential biochemical changes accompany and implement this conquest of land ...

The California red-legged frog and northern red-legged frog were once both classified as subspecies — Rana a. draytonii and Rana a. aurora, respectively — of the red-legged frog (Rana aurora). But a ...

Metamorphosis includes prior single “ Herman,” and it ends, surprisingly and delightfully, with a cover of Aerosmith’s 1975 hard rock classic “Sweet Emotion,” a song that is now 50 years ...