About This Quiz
The word frog conjures up different associations in different age groups and cultures, from Kermit or a spell-bound prince to a French delicacy. Take this quiz and relate to these creatures on their own merits.Water is essential to the survival of all species of frogs.
They begin as jelly-like eggs needing moisture to develop.
The eggs hatch into aquatic tadpoles, which breathe through gills.
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Almost all their water and some of their oxygen is acquired through their skin.
It can't get enough oxygen or get rid of carbon dioxide and dies.
They lay them on land, where the males keep them moist with urine.
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The mothers carry the tadpoles to tiny pools of water collected between the stem and leaves of plants.
Not all frogs are toads.
They've been around for about 200 million years.
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The smallest frog is the gold frog at less than a centimeter in length.
They are about 12.5 inches (32 centimeters) long.
Many are green, but some are orange, yellow, blue or pink.
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Toads have bumpy, drier skins with legs made for walking rather than jumping.
Their lack of tails is so defining that their scientific order, Anura, means without tail.
Since their tails are in fact reproductive organs, they are the only frogs that can fertilize eggs while they are inside the female's body.
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Their skeletons are similar in some ways especially the limbs.
Some use a sticky substance on their feet to help them climb.
A frog's pelvis can slide up and down its spine, which helps it jump.
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Frogs don't have external ears, but an eardrum behind each eye.