Salamanders

Eats other salamanders

Has larger teeth

Has a wider head and larger teeth

Has a wider head

High incidence of disease caused by a bacterial infection

There are no disadvantages

Low incidence of disease caused by a bacterial infection

Medium incidence of disease caused by a bacterial infection

All mountain meadow ponds

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

All ponds

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

By sight

By touch

By taste

By smell

Researchers did not study the likelihood of extinction.

Cannibals were not an indicator of extinction.

It is higher when there are a lot of cannibals.

It is lower when there are a lot of cannibals.

have distinctive physical traits associated with their behavior.

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

have special teeth associated with their cannibalistic behavior.

have distinctive physical traits associated with their cannibalistic behavior.

Fish and Frogs

Aquatic crustaceans and insects

Insects and Plants

Rocks and Sand