Orca Whales- Greek God of the Underworld Essay Example for Free

Orca Whales- Greek God of the Underworld EssayThere are three contrastive types of Orcas species documented to date resident, transeunt and offshore pods. The resident pods are separated geographically speaking and have been documented living spring, summer, and fall near the Washington coastline and have been spotted as far south as the Central California coastline. They have been spotted in the Puget Sound, Vancouver Island, Strait of Juan de Fuca, and the Southern Georgia Strait. While little is known virtually their movements genetic data does suggest that these whales do not usually mingle with those from the other species. The Southern Resident Pod is currently on the endangered species dip and is protected by the Marine Mammal Protection Act (MMPA) and a distinct species under the Endangered Species Act. There are 88 whales currently listed on the list for the resident whales that researchers have documented using the whales saddle patchs as a signature to name and num ber each whale. only whales have a distinct marking behind their upper dorsal fin that in reference to humans would be like their own digit print no two are alike. The resident pod is usually led by an older and wiser pistillate whale and they usually stay unitedly in large pods.They swim and hunt together. The male whales on number can grow up to 24 feet in length and weigh betwixt 7 to 10 tons. They typically live up to 30 years just now can live up to 50 to 60 years. The females on average grow up to 21 feet in length and weigh between 4 to 6 tons. They typically live up to 50 years but can live up to 80 to 90 years. These averages usually vary if they are in the wild or captivity. The pods grow to large numbers as the young never leave their mothers side so there will be times when multiple generations will be fluid side by side.While resident whales prefer fish their counterpart the transient prefers marine mammals. The transient pods are not as reliable as their counte rpart the resident in that they do not live in large pods and usually have a family of only ten whales or less. They do not rely on the mother figure to lead the group as the resident whales do. The transient pods diet is often geographically specific. They share their boundaries with some(prenominal) resident and the offshore whales. The offshore orca pods are typically smaller in size and they are less sexual dimorphism both the male and female share the same features and appear less visually different.The resident pod and the transient pods have distinct differences between the male and female whales not only is the male a larger mammal the male also has a top dorsal fin that can reach up to 5 to 6 feet out of the water while the female fin is not as profound. These different Orca species do share some common features as puff up the orca is a highly sociable and curious mammal. They communicate with one another using clicks, whistles, and pulsed calls. Orcas prefer cool waters and rely on echo sounding for navigation and discriminating between prey and other surrounding objects.Each species may have their own dialect as people do from different parts of the world. All three pod species also can share some of the same threats that are endangering their species all together. The Orca has no one to maintenance except for the human being there is not an animal in the ocean that they fear. The threats that come can be from contaminants in the water, to depletion of their prey, a ship clash or oil spills. Whales can be threatened by noise, industry and even military activities. There is also the possibility of being caught in a fishermans line.