Salamanders

Aquatic crustaceans and insects

Fish and Frogs

Rocks and Sand

Insects and Plants

have distinctive physical traits associated with their behavior.

have distinctive physical traits associated with their cannibalistic behavior.

have special teeth associated with their cannibalistic behavior.

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

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

All ponds

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

All mountain meadow ponds

By sight

By taste

By touch

By smell

Eats other salamanders

Has a wider head

Has larger teeth

Has a wider head and larger teeth

It is higher when there are a lot of cannibals.

Cannibals were not an indicator of extinction.

It is lower when there are a lot of cannibals.

Researchers did not study the likelihood of extinction.

High incidence of disease caused by a bacterial infection

Low incidence of disease caused by a bacterial infection

Medium incidence of disease caused by a bacterial infection

There are no disadvantages