Problem :
A female Herring gull has a red spot on her beak. When they see this spot, her
chicks will peck at it and the female bird will regurgitate food for the chicks.
Identify two key stimuli and their resulting fixed action patterns in this
situation.
[Solution]
Problem :
A male stickleback fish will normally become aggressive upon seeing the red
belly of another male stickleback. These males will become extremely aggressive
when they see a large red object. Why does this happen?
[Solution]
Problem :
Ducklings must crouch to avoid predators that fly overhead. The silhouette of
predatory birds is the same shape as that of adult ducks in reverse. A duckling
knows to crouch when a predatory bird flies overhead, but does not crouch when
adult ducks do. What two key stimuli does the duck require to trigger the
crouching fixed action pattern?
[Solution]
Problem :
In the above problem, what type of stimulus is the combination of predator shape
and direction that triggers the crouching FAP in ducklings?
[Solution]
