1. The primary objective in “Moth tail divert bat attack: Evolution of acoustic deflection” is to test whether the spinning hindwing tails changes the target of the echolocation on a bat’s attack. This paper aims to observe the bat attacks on the moth tail, instead of attacking the moth’s wing or other body parts. 2. Primary findings: • Bats captured less moths with the tails than ones with without the tails. • A moth without a tail is more likely to be captured by the bat. • The predator evasion did not change during flight performance. • Moth tails delocalizes the bat attacks to expendable wing parts. 3. If this research continued on, this study can test various lengths of hindwing tails in separate evolutionary counter events in
The Bat 6 game was everything, the most important event for 6th-grade girls, and this was the 50th game. In 1899 — 49 years before — the women of Barlowe Road and Bear Creek Ridge, at the end of the Oregon Trail, decided the rivalry between their towns had gone on long enough. They planned a ladies softball game and picnic, and the men from both towns showed up and made friends. Over the years, the games continued, and eventually, it became traditional for the 6th-grade girls’ teams to play against each other. It was the only game they played, and they could only be on the team for one year. For the nine girls on each of the teams, it was the most important year of their lives.
The Evolution Lab simulates environmental situations to determine effects on evolution over periods of time. This lab experiments with the evolution of finches on two different islands over 100, 200, and 300 years. By manipulating parameters that influence natural selection, the effects that natural selection have on the evolution process can be studied.
Achieving a powerful swing is difficult, so having the best equipment is imperative. To start, grab shock resistant batting gloves and the appropriate bat. The correct bat length is figured out by balancing the bat the top of the barrel. When balanced on the floor, the knob of the bat should graze the bottom of the groin. Each league has different bat regulations based on the bat’s composition. In a wood bat league, the best type of wood is maple because it is more dense, resulting in less flexibility, and more strength than ash. The less flex a bat has the more power the batter can generate because the change in velocity, known as inertia, will be greater resulting in a more powerful impact. In a metal bat league the best choice is a one part composite bat because, like a
In this experiment, vestigial flies as well as wild type flies were used to create some diversity as well as test one of our hypotheses. Our hypotheses are as follows; 1) The wild type flies will have a greater relative fitness compared to the vestigial flies based on only sexual selection. The wild type has a relative fitness of 1 since it has fully functional wings. Vestigial Winged flies are not as sexually appealing since their wings are not functional and the wing movement is a vital part of their mating ritual. 2) The vestigial fly will have a greater relative fitness when considering both sexual and natural selection. With the presence of
One has probably heard the simile, “you must be blind as a bat!” Well in fact, this statement is false, bats are not blind. Formally known in the mammal family as Chiroptera, bats can be split into two sub orders known as mega-bats (flying foxes or fruit bats) and micro-bats. Typically, when bats are thought of it is commonly known to have the characteristics of having echolocation, or sonar vision, to aid detection of objects in complete darkness. As illustrated in Figure 1, echolocation is the use of sound waves made by the contraction of the larynx, these waves are then reflected back from the moving object to signal the bat.
The metal bat carries an effect called the “trampoline effect,” (Nathan). According to “Safety Squeeze: Banning Non-Wood Bats Is Not The Answer To Amateur Baseball’s Bat Problem,” the “barrel compresses somewhat like a spring when the ball impacts it. This means that the ball is not compressed as much and therefore loses less energy,” (Palanzo). This causes a larger bat exit speed because no energy is lost and it is all stored up. In contrast, the wood bat loses “ about 75% of that energy,” (Nathan). With all the energy lost, this creates a slower ball exit speed than the metal bat. There are many different kinds of woods that players can choose from. “Historically, hickory was the players’ popular choice. As players demanded lighter bats, however, ash and maple emerged as the two dominant kinds of woods. Today, ash and maple each constitute 50% of Hillerich & Bradsby products,” (Palanzo). These different kinds of woods can lead to advantages for players because they can be able to choose what they feel comfortable using. This could not happen with a metal bat because they use the same metal for all of the bats. The technology of the wood bat will not change anytime soon. The article “Safety Squeeze: Banning Non-Wood Bats Is Not The Answer To Amateur Baseball’s Bat Problem,” states that “ MLB regulations on wood bats severely limit the technology
Many women across around the world are victims of abuse. A handful of them is harassed and faced unfair treatment. In fact, domestic violence gets so bad and many individuals lose their lives. The number of U.S. soldiers killed in Iraq and Afghanistan is 6614. In contrast, in the same period of time, 11,766 women in the United States were murdered due to domestic abuse. A short story called “The Bats”, written by Chitra Divakaruni is a tale in which a girl and her mother escape to a far relative due to constant and traumatizing abuse. However, this is a repetitive process due to the fact that the mother returns upon believing that the father has changed and will treat them both differently. Due to the fact that the mother returns
Every year farmers’ crops are subject to droughts, floods, storms, and so much more. But one of the biggest problems that seem to be plaguing the agricultural industry, specifically the cabbage and lettuce industry, is pests. One pest in particular is the diamondback moth, and it has been wreaking havoc all over New York. However, all is not lost; there still will be cabbage and lettuce in the grocery store. The reason for this? Scientists have come up with an effective new way to manage the diamondback moth, and it isn’t reliant on pesticides. It uses genes. But, best of all, it won’t be one farmer paying for one treatment. It will be a universal movement, and this movement has the possibility to revolutionize the crucifer, or, in more simple terms, the cabbage and lettuce market.
Defensive behaviors such as making the body appear to be bigger help an animal survive by scaring off prey. When an animal makes their body appear to be larger, or tighten quills, or make loud noises the predator animals get spooked and leave them alone.
The Terminator Fish Bat is something that should be part of everyone's big game fishing gear. This bat enables you to take out even the largest tuna or marlin quickly and easily. Having a large fish such as one of these flapping and flipping around in the boat is dangerous. This is something that can easily lead to an injury that would be a disappointing end to what should be a fun day out on the water. A fishing bat gives you the help you might need to put a stop to this potential danger before it starts.
In the case of ring species, natural selection and sexual selection each play a role in the divergence of ring species. Selective pressures allowed one phenotype to survive better than others in a certain area; sexual selection could cause divergence because organisms choose mates based on phenotypes. In the case of salamanders, natural selection affected divergence because organisms with certain coloration survived better in coastal or inland environments. In warblers, sexual selection and natural selection seem to play a part in the divergence of the ring species, as forest density and migration distance is variable and affects survival of the species. Molecular and morphological evidence can be used to support multiple species by showing
Hello Ladies, it’s time to step on the battlefield, let’s buckle down and get prayed up. Right off the bat Priscilla comes out swinging. I don’t think I’ve seen the Lord of the rings, but I love the opening quote, it got me to thinking, I will not stand by and let the devil steal my joy or anything for that matter.
How have trophy hunting and fishing impacted the evolution of species, according to the research presented by Weiner in this article?
The acoustic structure of manakin mechanical sound can be classified into four qualitatively distinct types: short, broad-frequency pulses; short, low-frequency pulses; aerodynamic whooshes; and harmonic sounds (Prum 1998). Many of the manakin family’s mechanical sounds produce short pulses of sound with a broad and continuous frequency spectrum from less than 1 kHz to more than 5–10 kHz. Analysis of high-speed videos, which show male M. deliciosus, actively drive about 107 Hz medio-lateral oscillations of the modified feathers. This fast-paced oscillation repeatedly knocks the modified feather shafts together across their midline (Bostwick and Prum 2003). Furthermore, analyses of the acoustic structure of the sound shows that the mechanical
“What Is It Like to Be a Bat?” is American philosopher, Thomas Nagel’s, opinion on the widely debated mind-body problem. Nagel introduces the paper by explaining what it means for something to be conscious. He defines consciousness as an organism’s ability for there to be something it is like to be that organism. Using his definition of consciousness Nagel suggests that physicalism cannot be successfully defended using the popular reductionism theory. This is because in order to be defended a physical account must be given to phenomenological features themselves. This leads Nagel to his argument, “Every subjective phenomenon is essentially connected with a single point of view, and it seems inevitable that an objective, physical theory will