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Related Concept Videos

What is Behavior?00:54

What is Behavior?

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Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other possible actions. Behaviors include activities related to the environment around the animal—such as migration—as well as social interactions within a species or population. Many behaviors involve motor output—that is, muscle movements—while others involve less visible actions, such as learning.
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The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane for different solutes and the concentration of nonpenetrating solutes in the solution within and outside of the cell. If a semipermeable membrane hinders the passage of some solutes but allows water to follow its concentration gradient, water moves from the side with low osmolarity (i.e., less solute) to the side with higher osmolarity (i.e.,...
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Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
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The field of behaviorism was pioneered by figures such as Ivan Pavlov, John B. Watson, and B.F. Skinner fundamentally shifted the focus of psychology to the observable and controllable aspects of human and animal behavior. This shift marked a critical evolution in the discipline, emphasizing scientific rigor and experimental methodology.
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Related Experiment Video

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A Simple Approach to Manipulate Dissolved Oxygen for Animal Behavior Observations
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Animal Behavior: Honesty Can Kill.

Norah Koblesky1, Lisa Stowers2

  • 1Department of Neuroscience, Scripps Research, La Jolla, CA, USA; Neuroscience Graduate Program, University of California San Diego, La Jolla, CA, USA.

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|April 3, 2019
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Summary
This summary is machine-generated.

Virgin male mice exhibit infanticide, killing pups to reproduce. Research reveals pups are identified by a mix of general and reliable signals, uncovering a surprising mechanism behind this behavior.

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Area of Science:

  • Behavioral Ecology
  • Neuroethology
  • Reproductive Biology

Background:

  • Male mice exhibit infanticidal behavior, a strategy to eliminate rivals' offspring and facilitate their own reproduction.
  • Understanding the sensory cues and neural mechanisms driving infanticide is crucial for comprehending reproductive strategies in mammals.

Purpose of the Study:

  • To investigate the sensory cues utilized by virgin male mice for pup recognition.
  • To elucidate the underlying logic and mechanisms of infanticide in this species.

Main Methods:

  • Behavioral assays observing male mouse interactions with pups.
  • Analysis of olfactory and tactile cues associated with pups.
  • Experimental manipulation of sensory inputs to assess recognition thresholds.

Main Results:

  • Virgin male mice identify pups using a combination of general characteristics and 'honest' signals.
  • 'Honest' cues are reliable indicators of pup status, influencing the decision to attack.
  • The recognition system reveals an unexpected complexity in the triggers for infanticide.

Conclusions:

  • Pup recognition in male mice is a sophisticated process involving multiple sensory modalities.
  • The findings challenge previous assumptions about the simplicity of infanticide triggers.
  • This research provides novel insights into the evolutionary and neural underpinnings of reproductive competition.