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