{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

EvolutionMechanisms160-page12

EvolutionMechanisms160-page12 - Growling clicking or rattle...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Evolutionary Mechanisms - 12 Behavioral Adaptations are used to confuse or distract potential predators. There are also behaviors that confer survival benefits such as nocturnal activity in desert habitats in which daytime activity would be dehydrating, using habitat to warm (or cool) such as lizards sunning or insects sunning before moving from flower to flower. Behavior is also used in courtship, as discussed. Some common protective behaviors include: Mother Bird with broken wing Twisting and turning when fleeing Enlarging body or presenting largest dimension to predator Rearing up on hind legs to look bigger Making warning sounds that indicates that a potential predator might be harmed by encounter.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Growling, clicking, or rattle sounds are common. Altruism is behavior that endangers the individual to protect other members of the population. This occurs most commonly among closely related individuals, and is called kin selection. To understand altruism in the evolutionary context you need to remember that what counts in the contribution of alleles to the next generation's gene pool. If "my" behavior results in the next generation's gene pool having a higher frequency of similar alleles to mine, it can be favored. Altruism is observed in many social animals, such as wolves. In a wolf pack, only one pair breeds. All others help to protect and raise the single litter....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern