Name: Columbia Spotted Frog (Rana luteiventris)
Family: True Frogs (Ranidae)
What they look like
- Up to 10cm
- Bumpy light brown or olive green skin with dark spots which are lighter in color in the center
- Underside is reddish including the back legs
- Have folds of skin down the sides of their back
- Very similar in appearance to Rana pretiosa
Where they live
- View a map of where they live
- In Washington State are found in the Cascades and in eastern Washington
- Prefer slow moving, quiet water with lots of plants including wetlands and water sources in damp forests
- Breeding season is February to July
- Prefers slow, shallow warm water in permanent water sources to lay eggs
- Eggs eventually will get covered by algae and turn a greenish color
- Eggs are laid in groups with other females, sometimes 25 or more masses can be found together
Cool Biology Facts
- Originally thought to hibernate all winter in mud under water, but there is evidence that they actually move around under the ice in winter
- Will migrate to find new water sources in dry seasons when their water sources dry up
- Sometimes they like to bask in the sun!
- Current population is decreasing. Main threats include introduced species, such as fish and bullfrogs and habitat loss.
- View their status on the IUCN Red List of Threatened Species.