Dolphins

Maui’s dolphin is a breed of dolphin that is slowly heading toward extinction, as they are a very endangered subspecies (1). On the North West coast of the North Island in New Zealand (between Dargaville and New Plymouth) lays isolated areas, which is where the Maui dolphin can be found, normally found in groups of approximately 1 to 5 dolphins within about 5 nautical miles of the shore. (2). Maui’s dolphin is the smallest breed of dolphins; they range in size from approximately 1.2-1.7m and weigh

creatures to develop an anatomy that is structured for them to thrive” (Dolphin Evolution). Evolution is the gradual development of a creature, especially from a simple to a more complex organism. Many mammals have evolved from one animal to another. For instance, dolphins has evolved from land animals to ocean animals. All of the dolphins belong to the cetacean family, which also include whales, dolphins and porpoises. Dolphins are now aquatic mammals who are very intelligent and curious. However

Human activities are ruining the existence of dolphins. Humans are not just killing one of the smartest animals but ruining parts of the life cycle. They need to clean up after fishing, keep the greenhouse gases under control, and not hunt for them for a food source. Humans need to do something good for all life on earth and its time to start now. “Dolphin are on the brink of extinction due to entanglement in fishing gear” (“Dolphin Threats”). When dolphins get stuck in these nets they become immobile

Bottlenose dolphins produce a extensive variety sounds that are divided into two categories: pulsed emissions, i.e. echolocation clicks and burst-pulsed sounds; and non-pulsed signals, i.e. whistles (Caldwell et al., 1990; Janik, 2013) (Figure 1:2). Clicks are high-frequency and directional sounds that are used to detect, discriminate and recognize objects in the environment, including potential preys (Caldwell et al., 1990; Janik, 2013). These clicks are used to locate/discriminate an object based

Dolphins have undergone an interesting history as they evolved from their whale ancestors. Archaeoceti is a parvorder comprising ancient Cetaeca. Dolphins can swim very fast. Swimming speed and duration are closely tied. High speed swimming can probably last seconds, while low speed swimming may last for long periods of time. Bottlenose dolphins usually swim at speeds up to about 3 to 7 miles per hour. Dolphins breathe through a single blowhole on the top of it´s head. The blowhole is covered by

Why Should We Save the Dolphins? Final Draft By: Emily Chang Class: 6(2) Subject: English Teacher: Mr. Kris(Smith) Imagine you are a dolphin swimming happily in the ocean with the other dolphins. Suddenly, you hear something terrible, and that makes you feel extremely uncomfortable. You swim towards somewhere “safe” to get away from that terrible sound. However, when you get in, you realize it is a trap! You have been caught! You might be sent to an aquarium or killed to be made

Imagine you are a dolphin swimming happily in the ocean with the other dolphins. Suddenly, you hear something terrible, and that makes you feel extremely uncomfortable. You swim towards somewhere “safe” to get away from that terrible sound. However, when you get in, you realize it is a trap! You have been caught! You might be sent to an aquarium or killed to be made into sushi. This unfortunate fate is not a dream, but it is a sad reality for hundreds of thousands of innocent dolphins. They are endangered

Approximately 20,000 dolphins are killed legally every year and thousands more are sold inhumanely in Taiji, Japan. The majority of these dolphins are sold to marine parks and aquariums around the world. Louie Psihoyos and Ric O’Barry’s eye-opening documentary The Cove raises awareness about the gruesome killings of dolphins in Japan. Ironically Ric O’Barry feels that he initiated this problem, as he was one of the first dolphin trainers/capturers in the 1960’s for the show Flipper. After witnessing

organs. Dolphins History: Dolphins are one of the most majestic creatures to live in the oceans. They came to Earth about 65 million years ago. People found a skeleton and thought it was a sea serpent. They named it the Basilosaurus

Barrett Dolphins! Land or water? What is everyone favorite mammals? Dolphins! Dolphins are known to be one of the cutest mammals known to man. They are highly intelligent. Dolphins are mammals that are fully adapted to live in water.Dolphins, like almost all mammals, give birth to live young, and nurse them with mammary glands, though it boggles the mind to imagine nursing underwater. Just like different animals, there are varieties when it comes to dolphins. There are 32 types of dolphins. They are