Salamanders

By smell

By taste

By sight

By touch

Low incidence of disease caused by a bacterial infection

High incidence of disease caused by a bacterial infection

There are no disadvantages

Medium incidence of disease caused by a bacterial infection

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.

Researchers did not study the likelihood of extinction.

Eats other salamanders

Has a wider head and larger teeth

Has larger teeth

Has a wider head

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.

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

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

All ponds

All mountain meadow ponds

Fish and Frogs

Insects and Plants

Rocks and Sand

Aquatic crustaceans and insects