Freshwater amphibians have smooth, moist skin, lay their eggs in water, and breathe air through lungs. Scales are a characteristic of reptiles, not amphibians.

Freshwater amphibians, as their name suggests, primarily inhabit freshwater environments such as ponds, lakes, rivers, streams, and wetlands.

Salamanders are a type of freshwater amphibian. Sea turtles, iguanas, and dolphins are not amphibians.

Metamorphosis is the process by which freshwater amphibians undergo a dramatic transformation from an aquatic larval stage, such as a tadpole, to a terrestrial adult stage, such as a frog.

Freshwater amphibians are facing multiple threats, including climate change, habitat loss due to urbanization and agriculture, and pollution from various sources.

Freshwater amphibians play multiple ecological roles. They serve as prey for larger animals, help control insect populations, and are sensitive to changes in water quality, making them valuable indicators of ecosystem health.

Bullfrogs are a type of freshwater amphibian found in North America. Poison dart frogs, fire-bellied toads, and glass frogs are found in tropical regions of Central and South America.

The Chinese giant salamander is the largest freshwater amphibian in the world, reaching lengths of up to 6 feet and weighing over 100 pounds.

Poison dart frogs are known for their ability to secrete toxic substances through their skin, which they use as a defense mechanism against predators.

Most freshwater amphibians primarily feed on insects and small invertebrates, such as worms, snails, and aquatic insects.

Salamanders are known for their remarkable ability to regenerate lost limbs, a process that involves the growth of new tissues and structures.

The primary function of the lungs in freshwater amphibians is to breathe air. They use their lungs to take in oxygen and release carbon dioxide.

Tiger salamanders are known for their ability to estivate during dry periods. They burrow underground and enter a state of dormancy to survive until conditions become more favorable.

Most freshwater amphibians primarily use swimming as their mode of locomotion. They have streamlined bodies and webbed feet that help them move efficiently through water.

The Japanese giant salamander is known for its ability to produce a toxic substance called tetrodotoxin, which is a potent neurotoxin.