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The species they support range from tiger salamanders to desert pupfish, and from songbirds to mammals such as ground squirrels and bighorn sheep.

Here in the Pacific Northwest spring, tiger salamanders emerge from their fossorial homes to breed, and the poisonous rough-skinned newt accelerates its activities with the warming sun.

At roughly nine inches long, Eastern tiger salamanders typically live near ponds in forested areas.

The study also highlights how certain conditions make some young amphibians such as tiger salamanders and spadefoot toads turn into supercannibals.

Males are so desperate to mate that multiple males will unsuccessfully try to mate with a female that is already amplexed, or even anything slimy and alive, such as a tiger salamander.