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About 両生類
Amphibians are cold-blooded vertebrates that typically begin life as aquatic larvae (like tadpoles) and undergo metamorphosis into terrestrial adults. This group includes frogs, toads, salamanders, and caecilians.
Amphibians have existed for over 370 million years and were the first vertebrates to leave the water. Today, they serve as important indicators of ecosystem health, as they are highly sensitive to environmental changes.
Fun Facts about 両生類
- • Amphibians were the first vertebrates to walk on land.
- • Some frogs have skin toxins potent enough to kill 10 adult humans.
- • Salamanders can regenerate lost limbs, eyes, and even parts of their hearts and brains.
- • Frogs use their eyes to help swallow food—they push their eyes down into their heads to push food down their throats.
- • Caecilians are legless amphibians that look like worms.
- • Some amphibians can survive being completely frozen and thaw out normally in spring.