Salamanders

Rocks and Sand

Aquatic crustaceans and insects

Fish and Frogs

Insects and Plants

There are no disadvantages

High incidence of disease caused by a bacterial infection

Medium incidence of disease caused by a bacterial infection

Low incidence of disease caused by a bacterial infection

By smell

By sight

By taste

By touch

It is higher when there are a lot of cannibals.

It is lower when there are a lot of cannibals.

Researchers did not study the likelihood of extinction.

Cannibals were not an indicator of extinction.

Has a wider head

Has a wider head and larger teeth

Has larger teeth

Eats other salamanders

have distinctive physical traits associated with their behavior.

don't have distinctive physical traits associated with their cannibalistic behavior.

have distinctive physical traits associated with their cannibalistic behavior.

have special teeth associated with their cannibalistic behavior.

Mountain meadow ponds between 2,600 and 5,000 feet

All ponds

All mountain meadow ponds

Mountain meadow ponds between 5,000 and 9,600 feet