Rocks and Sand
Insects and Plants
Fish and Frogs
Aquatic crustaceans and insects
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
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.
have distinctive physical traits associated with their behavior.
Medium incidence of disease caused by a bacterial infection
Low incidence of disease caused by a bacterial infection
There are no disadvantages
High incidence of disease caused by a bacterial infection
Cannibals were not an indicator of extinction.
Researchers did not study the likelihood of extinction.
It is lower when there are a lot of cannibals.
It is higher when there are a lot of cannibals.
By touch
By sight
By taste
By smell
Has a wider head and larger teeth
Has a wider head
Has larger teeth
Eats other salamanders