Chapter 26

Behavior

What is Behavior?
Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other…
Imprinting
26.2: Imprinting
Behavioral imprinting is observed in some newborn animals and occurs when they develop strong and specific attachments to another animal (usually a…
Communication
26.3: Communication
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the…
Migration
26.4: Migration
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms…
Mate Choice
26.5: Mate Choice
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes.…
Fixed Action Patterns
26.6: Fixed Action Patterns
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus.…
Optimal Foraging
26.7: Optimal Foraging
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the…
Parental Care
26.8: Parental Care
Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and…
Altruism
26.9: Altruism
Altruistic behaviors are “unselfish” behaviors—those that help another individual at the expense of the individual carrying out the…
Inclusive Fitness
26.10: Inclusive Fitness
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these…
Behavior: Using a Virtual Store as a Research Tool to Investigate Consumer In-store Behavior
26.13: Behavior: Using a Virtual Store as a Research Tool to Investigate Consumer In-store Behavior
There are various approaches to study consumer buying, but they don’t resemble realistic experiences. This protocol uses a virtual store…
Biology: Measuring the Effects of Bacteria on C. Elegans Behavior Using an Egg Retention Assay
26.14: Biology: Measuring the Effects of Bacteria on C. Elegans Behavior Using an Egg Retention Assay
Under natural conditions, when C. elegans come in contact with potentially harmful bacteria, they will retain their eggs until they find a safer…
Neuroscience: Tracking Drosophila Larval Behavior
26.15: Neuroscience: Tracking Drosophila Larval Behavior
How insects navigate towards odors using olfactory receptor neurons is not well understood and replicating conditions that activate them is…