Structure of song and non-song vocalizations: Researchers often point to the how Humpback whale singers are continuously evolving their songs yet easily conform and adapt to the singing of other whales (Rendalla 2001: 312). Furthermore, research has found that the songs of humpback whales not can vary by geography and evolve over time, but that underlying units of songs can be persistent over the years (Abbott 2010: 2902).Humpback whales peak time for song production is during the months of January and February. This timing overlaps with the peak breeding season. Additionally, the study found that The song included about 60 percent song units that were frequent while 40 percent song units that varied across the years. (Magnusdottir …show more content…
The process of bubble-net feeding is like a game of football, where members specialize in an specific factor of the bubble feeding. Bubble-feeding techniques are interesting because the techniques used depend on who the lead of the blowing bubbles which allow the group to capture the school of fishes ( Kelsey 2008: 57-58). The leaders of the bubble-feeding groups can be either male or female. Often times, humpback whales have been observed pairing up with specific individuals during the summer bubble net feeding. The humpback whales that stay with the same group seem to develop more efficient and successful techniques (Kelsey 2008:59). Humpbacks whales ability to form reciprocal bonds outside of kinship is demonstrated through their their formation of partner or group bubble net feeding for the entire summer, even through different decades, with non-related humpback whales (Kelsey 2008: 59). Yet, the relationships between humpback-whales are not always harmonious, when two different bubble-feeding groups collaborate together there are often tensions and competitions has the individual humpback-whales renegotiate their role within their group( Kelsey 2008: 60). Furthermore, when two groups are feeding in the same area, if on humpbacks from one group think that the other group is more successful in catching they may easily drop their alliance with their group in order to join what they think of being more successful bubble net feeding (Kelsey 2008:60). One of the reasons for the group patterns for bubble-net feeding over the summer and not the winter might be that during the summer since there are predictable and abundant schools of fish (Kelsey
On Saturday May 20th a confused Humpback whale gets stuck in the Ventura Harbor in California. The Coast Guard attempted to guide the Whale in various ways. The First way was to lure it with food but it did not take the bait. The next way was to emit sounds in the ocean to also lure it out but again it did not. Officials said they were worried about all the boats in the harbor being damaged because of the whale.
Whales in captivity suffer through a great amount of emotional abuse . In captivity, Children can be separated from their mothers, and whales that are taken from the wild are separated from their families ,which can consist of up to 40 members (National Geographic). Whales are very family oriented and each pod of whales has their own dialect when communicating. Whales are social creatures and by depriving them of social activity and their families, they become depressed and
Randall Wells and his team observed groups of male dolphin behavior in Sarasota Bay, Florida.
In terms of social structure, baleen whales are known to be quite solitary in nature often traveling alone or in small groups.Communication among baleen whales involves loud low-pitched moans and whines, and physical gestures such as spy hopping, lob tailing, breaching and charging.
Observations made by Coscarella et al. (2015) show the Killer Whale swimming alongside a dolphin and hitting the dolphin in its head in order to knock the dolphin unconscious. Coscarella et al. (2015) also spotted these Killer Whales socializing, lobtailing, slapping, and recorded breaching behaviors. Coordinated hunting behavior was seen as the Killer Whales would herd the dolphin towards an individual whale that would catch the prey, this supports a belief that sharing prey is common because this has been seen before (Coscarella et al., 2015). Social relationships are maintained when the Killer Whales share their prey (Coscarella et al., 2015).
The earliest whales were land animals with long skulls and carnivorous teeth. Analysis of whale skulls showed major morphological changes, including changes to the skull size, shape, teeth, and nostrils. Fossil evidence shows that the trait of interest, the nostrils, can be found on fossils of the earliest whales, dating back to about 50 million years ago. Evolution occurred multiple times since then, each time resulting in the nostrils migrating further back on the skull. Eventually, the pair of nostrils positioned itself right on top of the head. These nostrils are the blowholes we see positioned on top of modern whales today. In addition, another momentous change in the nostrils occur when order Cetacea splits into Mysticetes and Odontocetes. Suborder Mysticetes
“… building a tank the size of Rhode Island wouldn’t be large enough for a six-ton male killer whale such as Tilikum, an animal capable of swimming 100 miles a day,” states an anonymous whale expert. Whales have been in captivity since 1861 when P.T. Barnum displayed the first live whale that was captured in Canada. However, Barnum had no idea how to care for the mammal and it died after only a week in captivity. (Animal Legal and Historical Center, 2014) Being up close with killer whales could give us some clues about how they interact with each other, including physical behavior, their dialect, and how their pods work together as a family unit. However, what we are finding is that whales who belong in the wild are suffering in
Whales have a different part of the brain than we do to process emotions. So we never know
In addition, many pods of whales, both resident and transient ones around the world, have a distinct repertoire of calls; certain pods that have similarity in these calls are grouped together as clans (Ford, 1991). When pods within clans share most of the same calls, but also have a few different one, the pods are said to have different dialects and are referred to as subclans (Ford, 1991). These repertoires are suspected to be specific to the matrilineal line, but are thought to be learned behaviours rather than genetically inherited (Ford, 1991). This is due to the fact that even when pods from different clans travel together, their communication remains independent (Ford, 1991). The types of calls vary with the type of activity that the whale undergoes, as well as the social setting (Ford, 1989). In British Columbia, studies have shown that whale pods have 7-17 discrete call types, whereas in Alaska there were 3-16 discrete call types (Ford, 1991; Strager, 1994). In one study on Alaskan killer whales, six of the nine pods studied exhibited unique repertories, indicating that killer whales were capable of having vocal traditions (Strager, 1994). These calls may also be unique due to geography differences, as calls recorded in different parts of the world showed overlap; either meaning that these calls were formed independently, there are certain calls
The dwarf minke whale may be the whale we know the least about of all. These friendly creatures appear every winter for a few months on the outer edges of the Great Barrier Reef. “We know everything there is to know about their habits except where they are the rest of the year and what they are doing while they are there” (Smathers 458). Perhaps because the adults are only about 25 feet long, they are not nearly as famous as blue whales or humpbacks. According to Robert Jones, dwarf minke researchers have a hard time getting donations to cover their expenses (33-35). Felicia Smart wonders if it would be different of they had songs like the humpbacks(volume
Orca whales display a wide range of intricate behaviors that indicate a high level of social intelligence (Anderson 1). In the article, Orca Behavior and Subsequent Aggression Associated with Oceanarium Confinement, the authors state, “We observed in the animals what appeared to be pranks, tests of trust, limited use of tactical deception, emotional self-control, and empathetic behaviors” (Anderson 1). This suggests the orcas have human-like tendencies and that they are very bright. These creatures are friendly, naturally happy, understanding, and relatedly seeking companionship (Wise 937). The orca’s brain has an additional part, the para-limbic cleft, that humans do not have; this suggests that whales have a sense of self and have a sense of social
The origin of modern day whales, a mystery that has puzzled paleontologists for years, may have just been solved with the discovery of an ankle bone. This discovery might sound simple and unimportant, but the bones of these ancient animals hold many unanswered questions and provide solid proof of origin and behavior. The relationship between whales and other animals has proven to be difficult because whales are warm-blooded, like humans, yet they live in the sea. The fact that they are warm-blooded suggests that they are related to some type of land animal. However, the questions of exactly which animal, and how whales evolved from land to water, have remained unanswered until now.
Capital punishment or the death penalty is punishment by death of a person who has been legally tried in a court of law for a capital crime. The morality and constitutionality of the death penalty has recently come up for debate again after the European pharmaceutical companies, who produce Pentobarbital, one of the drugs most commonly used to execute the death penalty sentence via lethal injection, stopped exporting and allowing the sale of the drugs to the United States. (Steiden, 2014) (Levitt & Feyerick, 2013) Since then multiple lawsuits have been filed by incarcerated individuals and opponents of the death penalty after several states began looking into new drug combinations or having variations of the banned drugs created by compounding pharmacies locally. (Levitt & Feyerick, 2013) Two such lawsuits were filed by Clayton Lockett and Charles Warner, who were both found guilty of capital crimes and sentenced to death in Oklahoma. Both Lockett and Warner argued for a stay on their execution dates until the controversies over the new drug protocols adopted by the state of Oklahoma were cleared up. (Eckholm, 2014) Other lawsuits filed have argued that using untested drug protocols in lethal injections should be considered “cruel and unusual punishment.” (Levitt & Feyerick, 2013) The debate really heated up after Clayton Lockett’s appeal for a stay was denied and he appeared to have suffered for an extended amount of time during his execution. (Steiden, 2014)
During this semester, we explored many health issues and topics that involve our local community. Out of all the topics, we have learned during this semester the one topic that interests me the most was physical fitness. Since learning about physical fitness, I have a better understanding of the importance of staying active and how it benefits your body and mind. From the video “23 and ½ hours: What is the single best thing we can do for our health?” Dr. Mike Evans explains how exercising for 30 minutes a day, just by walking, can lower your risk of developing cardiovascular disease, obesity, and diabetes (Evans,2011). Also, from the reading “ Health Benefits of Physical Activity,” according to the Physical Activity Guidelines for Americans,
In the present era, there are many issues that pose a threat to our way of life. Overpopulation is one of the most serious threats to mankind.Overpopulation is a serious problem that will eventually have an extremely negative effect on our countries and our planet. Overpopulation is generally defined as an inability of the environment to support the existing population of human or other living things. Overpopulation is an undesirable condition where the number of existing human population exceeds the carrying capacity of earth. If a country or city is overpopulated, it has too many people for the amount of food, materials, and space available there. Overpopulation is caused by number of factors. Reduced mortality rate, better medical facilities,