May 1 – 7, 2022 is National Amphibian Week!

What is an amphibian? Amphibians are animals that live partly in water and partly on land. Frogs, toads, newts, and salamanders are all amphibians. They are often confused with reptiles, which have dry and scaly skin, but amphibians have soft, moist skin.

Read more to learn about ten different species of amphibians you can find in national parks.

Mississippi National River and Recreation Area, MS

Leopard Frog

Species of leopard frogs (Lithobates) can be found in Canada down through South America. While there may be a lot of species and varied patterning between individuals, they all have a similar coloration: brown or green spots that form a “leopard” pattern.

Monocacy National Battlefield, MD

Gray Treefrog

The gray treefrog (Dryophytes versicolor) is a species of small tree frog native to much of the eastern United States and southeastern Canada. #FunFact: As its scientific name suggests, gray treefrogs can camouflage themselves depending on which substrate they are sitting on.

 Delaware Water Gap National Recreation Area, NJ

Red Eft Salamander

If you live near a forest on the East Coast, beware the red eft salamander! They contain a poison called tetrodotoxin. You can’t get poisoned by touching this small amphibian, but if you eat it, you’re in for a world of trouble.

 Natchez Trace Parkway, MS

Marbled Salamander

Marbled Salamanders (Ambystoma opacum) are nocturnal amphibians that burrow under logs daily. They can be found throughout the Southeast U.S., except in southeastern Georgia, peninsular Florida, and the higher elevations of the Appalachian Mountains.

Big Thicket National Preserve, TX

Squirrel Treefrog

The squirrel treefrog (Hyla squirella) is a small species of tree frog found in the southeastern United States, from Texas to Virginia. #FunFact: In the areas where squirrel treefrogs are common, they are called “rain frogs” since their call can often be heard during and after rain showers.

Mesa Verde National Park, CO

Rocky Mountain Toad

True to its name, the Rocky Mountain toad (Anaxyrus woodhousii woodhousii) ranges from the Dakota states and Montana to central Texas, then west of the Rocky Mountains from northern Utah to Central Arizona.

 Zion National Park, UT

Canyon Treefrog

The canyon tree frog (Dryophytes arenicolor) is a species of tree frog native to the rocky plateau areas of the Southern United States, like Utah or New Mexico. Their colors can vary a lot but usually match the soil or rock coloration of their native habitats to serve as camouflage.

Mount Rainier National Park, WA

Long-Toed Salamander

Found primarily in the Pacific Northwest, the long-toed salamander (Ambystoma macrodactyl) hibernates during the harsh, cold winter months. They can be easily recognized by the yellow stripe running across their backs (and their long toes!)

Dinosaur National Monument, UT & Co

Woodhouse’s Toad

Woodhouse’s toad (Anaxyrus woodhousii) is a medium true toad native to the middle parts of the United States and Mexico. #FunFact: This toad species was first described in 1854 by the French herpetologist Charles Frédéric Girard. He gave it the name Bufo woodhousii in honor of the American physician and naturalist Samuel Washington Woodhouse.

Channel Islands National Park, CA

Pacific Slender Salamander

The Pacific Slender Salamander (Batrachoseps pacificus), or the Channel Islands Salamander, is a type of lungless salamander that is endemic to Channel Islands National Park. This means that this species is not usually found outside the boundaries of the Channel Islands.

Visit to find out more about #AmphibianWeek and ways you can get involved.