Follow an amphibian’s life cycle from an underwater egg to a land-roving organism
General characteristics of amphibians.
Encyclopædia Britannica, Inc.
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What’s the chemistry of hibernation?
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Encyclopædia Britannica, Inc.
Real-time and slow-motion footage of a toad seizing prey with its tongue.
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Fighting a killer frog fungus.
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Encyclopædia Britannica, Inc.
The life cycle of a North American toad.
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Encyclopædia Britannica, Inc.
The bullfrog (Lithobates catesbeianus) is a strong jumper common in many parts of North America.
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Encyclopædia Britannica, Inc.
Caecilian moving over soil.
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Encyclopædia Britannica, Inc.
Learn about tree frogs of American tropical rainforests. Adhesive disks on their feet help them walk on slippery leaves without sliding, and they lay eggs; within the egg mass, embryos can be seen twitching. The tree frog with a translucent underside is called a glass frog (family Centrolenidae). (42 sec; 7 MB)
Transcript
The frog and toad are in a group called amphibians. They also come from eggs–but eggs laid in the water. When the egg hatches, the amphibian still lives in water. It is only later it grows into an animal that can live on land, although it may still live near the water.
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