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Natal philopatry
This type of behavior is most commonly seen in a variety of bird and turtle species. This type of behavior is thought to be naturally selected because it takes more energy and fitness to create -
Sickle-Cell Anemia and Malaria Connection
300px Sickle-Cell anemia is a disease that has a short life expectancy, but carriers of this disease are resistant to the sickness Malaria -
Adaptations-Behaviors
What are Behavioral Adaptations?== Behavioral adaptations are features/behaviors that organisms have evolved over time to alter how they react in respose to things. All organisms have adaptations that help them survive and adjust to -
Co-operation or mutualism
"Natural selection cannot possibly produce any modification in a species exclusively for the good of another species" (Darwin, On the Origin of Species)- Here Darwin argues that altruism between species doesn't exist, that -
More on Parapatric Speciation
Of the four types of speciation - the one I'm most intrigued by is Parapatric speciation. Thought I'd dive a bit deeper into the topic and see about giving some good examples that really -
Mating Systems
A mating system is how organisms sexual behavior is displayed and maintained such as: Monogamy: a pair that mates and breeds with one another for life. -
Kin selection
300px A type of evolutionary altruistic strategy in which relatives/family members are willing to work together to protect offspring other than their own, as it helps to propagate a small portion of their genes -
Horizontal Gene Transfer
Normal gene inheritance happens through recombination of genes into the next generation of organisms. Another way in which non-inherited genes enters an organism’s genome is through horizontal gene transfer, or lateral gene transfer -
Gene-culture coevolution
Gene-culture co-evolution-When biology and culture interact and modify selection pressures. What an indiviual learns depends on the genotype.Also, the selction process which acts on the genetic system may be modified by -
Memetics
Memetics is the scientific study of the evolution of memes. Richard Dawkins coined the term "meme" in his 1976 book, The Selfish Gene. Memes, which are analogous to genes, are cultural units, or ideas, beliefs -
Index Fossils
Index fossils are fossils that were fairly common and found in a number of regions, however, they were only present for a short period of time (Ghosh, 2006. Because of their abundance and short life -
Bipedalism
Bidepedalism, or upright walking, is a key characteristic of human beings. There is general agreement that the evolution of bipedalism is the benchmark adaptation which set hominins on the path away from ape and toward -
Adaptation: Physical vs. Behavioral
According to Webster (2000), "adaptation is the fit between the design of an organism and its habitat" (p. 28). Adaptations are any behavioral or physical characteristics of an animal that helps it to survive and -
Human-Induced Evolution
Write the first paragraph of your page here. Palumbi (2001) noted that human impact on the global biosphere now controls many major facets of ecosystem functions. -
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Clade
A clade is a group of species that have similar characteristics made up of an ancestor and all the descendants of that ancestor, no matter if those descendants are extant or extinct (Berkeley.edu, n -
Dispersal
Dispersal describes when members of a select population cross a geographic barrier and establish a new population (Purves, Sadava, Orians,& Heller, 2004). Dispersal can be driven by several different factors including but not limited to -
Evolution of the Flying Squirrel
Evolution of the Flying Squirrel Flying squirrels’ relatives date back to the Eocene period, which was between 38 and 55 million years ago. Tree squirrels were first, about 30 million years ago. Followed by tree -
Artificial Selection
Artificial selection is selective evolutionary pressure imposed by humans to obtain desired traits. The term was coined by Darwin in contrast to his theory of Natural Selection, however the term used currently is known as -
Founder Effect
Founder effect is a phrase that came up recently in our conversations about speciation. It refers to a situation where genetic diversity is somewhat limited due to a small initial "founding" population. Some good examples -
Hybridization
Hybrid Hybrids, as defined by Science Daily (2013), are the result of interbreeding between two animals or plants of different taxa. -
Incipient Speciation
300px When populations have diverged and they are mostly isolated from each other in terms of gene flow, though some interbreeding my occur, they are said to be incipient species. Incipient speciation may be the -
Pleitropy
Write the first paragraph of your page here. Pleiotropy: refers to the phenomenon when one gene or gene complex influences multiple unrelated phenotypes. -
Coevolution
Coevolution is when two species that share a relationship evolve together for mutual benefit of both species. An example of this can be seen in pollinators and plants. It can occur in predator and prey -
Genetic Drift
Genetic Drift: the random change in the frequency of an allele (gene) within a population (Masel, 2011). Genetic Drift is one of the four basic mechanisms of evolution. Since genetic drift is entirely based on
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The Terraria Wiki is a comprehensive resource containing information about all versions of Re-Logic's action-adventure sandbox game, Terraria.