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What are Structural Adaptations?
Structural adaptations are physical features on an animal that have evolved over time to help them survive and breed. Adaptations usually occur because of gene mutations or changes by accident. For example, if one day -
File:Greater frigate bird displayYou can see that this display of sexual selection works for this bird in the end. hollering at the ladies
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File:Wild orchid wasp mimic - David Attenborough - BBCThis incredible plant dupes wasps into thinking they're mating, while loading them with pollen. From the BBC.
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File:Solving Hardy Weinberg ProblemsPaul Andersen shows you how to solve simple Hardy-Weinberg problems. He starts with a brief description of a gene pool and shows you how the formula is derived. He then shows you how to
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File:Richard Dawkins Vestigial Organs The Wings of the Flightless Cormorant-0Richard Dawkins explains how vestigial organs like the stubby wings of the Flightless Cormorant were one of Darwin's key arguments for Evolution. Download Quicktime version (720p HD): http://cdn.cloudfiles.mosso.com/c116791/flightless
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File:Founder Effect, Bottle Necking, and Genetic DriftDescription to be added later. Description to be added later.
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Predator-Prey Coevolution
Coevolution is a cyclic process in which the adaptations of one organism in an ecosystem drive the adaptations of another organism. These adaptations then cause the first organism to adapt to keep up (Brockhurst& Koskella -
Human Family Tree
The fossil record has revealed evidence of human evolution. Fossils allow scientists to analyze how body size/structure, brain size, diet, and locomotion has changed over the past 6 million years. Radiometric dating makes determining -
Types of Sexual Selection
There are two types of sexual selection: Intrasexual and Intersexual. Intrasexual selection deals with members of the same sex in a given species. An example of this can be seen in elephant seals, polar bears -
Sneaky F*uckers
The term "sneaky fuckers" was coined by evolutionary biologist John Maynard Smith to describe subordinate males who take advantage of the opportunity to mate with females while dominant males are otherwise occupied, leading to their -
Recessive Epistasis
Recessive epistasis is the phenomena in which the expression of one gene pair is dependent on another gene pair (OpenStax College, 2013). In other words, one gene must be turned on for another gene to -
Sexes of Slime Molds
Only two sexes occur in most species, but Physarum polycephalum, a common yellow slime mold, has over 500 different sexes! A true mature slime mold is one gigantic cell--easily visible to the naked eye -
Intrasexual Selection vs. Intersexual Selection
When discussing competition for mates, there are two different forms of sexual selection. Intrasexual Selection: Members of the competitive sex fight amongst themselves and the key event determines reproductive success whether it be fighting directly -
File:Geologic time scale.jpg
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File:Genetic Drift-1Very visual and simplified explanation for founder effect and bottleneck effect causing genetic drift.
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File:Homologous vs Analogous Traits Evolution series pt1Part 1 of a series on the topic of evolution. In this video I will be talking about homologous and analogous traits.
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File:Convergent evolution-caninescanine convergrent evolution podcast, part of biofundamentals-2012 canine convergrent evolution podcast, part of biofundamentals-2012
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File:Social ShrimpsFrom BBC the series of The Blue Planet these amazing shrimps are shown in the episode of Coral Seas. Fantastic how besides bees, ants and wasps also shrimps have developed an altruistic social structure with
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File:Speciation-0California salamanders are a case of evolution in action. Video from PBS. California salamanders are a case of evolution in action. Video from PBS.
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File:Allopatric and sympatric speciationA brief review of allopatric and sympatric speciation. A brief review of allopatric and sympatric speciation.
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File:Microevolution-0Paul Andersen defines microevolution as any change in the frequency of the allele pool. He then explains the five mechanisms of evolution; small sample size, non-random mating, mutations, gene flow and natural selection. Intro
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File:Peter Gray part 1 Evolutionary Developmental PsychologyPeter Gray came to speak at Clearview Sudbury School on March 5th 2013. The recording of one hour and 40 minute talk has been broken up into 15 segments. In this first segment, Dr. Gray
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File:SPECIES! let's have fun with EVOLUTION!hello all, let's play with this Alpha, free, evolution simulator! real talk, I have Twitter now, why? same reason as everyone else, attention whoring. https://twitter.com/Aaron_M_DeVries
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File:Beat The Plastic Micro-BeadMany companies around the world employ Polyethylene plastic micro-beads as an exfoliant in facial cleansers. 5 Gyres discovered plastic beads of the same size and shape in The Great Lakes last year, demonstrating that
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File:Marine Animals and their Offspring-0http://www.youtube.com/watch?v=RZCBEWEq6Ls New Project 2
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Wookieepedia is a wiki-based online encyclopedia that contains detailed information about the Star Wars universe, including movies, books, video games, characters, locations, technology, weapons, vehicles, and everything in between. Founded in 2005, Wookieepedia has over 175,000 articles, covering everything from the…