1. Beluga whales typically don't dive very deep, usually to about 20 m (66 ft.). Belugas are not generally thought of as deep-diving marine mammals, but they are capable of diving to extreme depths. Under experimental conditions a trained beluga whale repeatedly dove to 400 m (1,312 ft.) with ease, and even dove to a depth of 647 m (2,123 ft.) (Nowak, 1991; Ridgway et. al., 1984).
The Beluga whales are classified as follows: Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Cetacea, Family Monodontidae, Genus Delphinapterus, Species leucas. ) Beluga whales are one of the prettiest whales that scientist have every seen. One thing that most people don’t know about Belugas whales are that they eat 2.5% to 3% of their own body weight. Beluga whales mainly eat octopus, squid, crabs, snails, sandworms, and fishes such as capelin, cod, herring, smelt, and flounder. Beluga whales are slow swimmers.
The dorsal fin helps the dolphin maintain its balance as it swims. Muscles of the back help the dolphin flow through water. A bottlenose dolphin lives in bodies of water all around the world. They live in groups of 10-30 dolphins which are called “pods”. Some dolphins offshore have been seen in groups of several hundred, these groups are called “herds”.
Spinner dolphin Did you know that spinner dolphins are often found in warm waters? They live far away from land. The hawaiian and costa rican dolphins live near land. They live in pods of 1,000 members.They love to ride and jump on bow waves.They may travel with yellowfin tuna. Spinners go about dive 300 ft during the day to find prey but can dive up to 800 ft into utter darkness.
The head of the Blue whale forms up to a quarter of the total body length. Compared with other rorquals, the head is very broad. The blue whale heart is the size of a small car and can pump almost 10 tons of blood throughout the body. They have a very small, falcate (sickle-shaped) dorsal fin that is located near the fluke, or tail. Blue whales have long, thin flippers 8 feet (2.4m) long and flukes that are 25feet (7.6m) wide.
Its skin is 10 centimetres thick. The top fin on the tail is slightly larger than the bottom fin. The tail of the whale shark is half mooned shaped. Whale sharks are slower that most sharks. They have to move their whole body to swim rather that tail.
The smallest streamlined, black and white shark of the genus Squaliolus can grow to be up to 6 inches long and the female can grow to be up to 8 inches. They can grow up to 40 feet long. They are also known to weigh over 15 tons. The smallest sharks known at a full stage of growth may measure about 6 inches long and weigh about 1 ounce. Sharks live in many places throughout the ocean.
Characteristics of Dolphins The majority of small tooth whales are called dolphins. “Dolphins are mammals of the order Cetacean and the families Plantanistidae and Delphinidae and include about 50 species” (Internet 1). Most dolphin species are about 6 feet in length, the males averaging 4 to 8 inches longer than females. The longest dolphin, the bottle-nose dolphin, can reach over nine-feet in length and weight up to 440 pounds. The smallest dolphin species is the buffalo which is found in the Amazon River.
The Biogeography of the Dolphinfish Description of Species Dolphinfish are compressed, elongated fish with a large mouth and many fine teeth. They have a long dorsal fin that stretches from their nape to a forked tail. The anal fin is also long, extending from mid-body to their forked tail. Males have a bony crest on the head that is not present in females. These colorful fish exhibit hues of gold on the sides, iridescent blues and greens on the sides and backs, and white and yellow underneath.
This can scare away some predators, but predators like sharks might take this as a sign that it is fine to feed now! To protect themselves while sleeping, they close one eye and leave the other eye open as well as one side of the brain stops and sleeps while the other side doesn’t. This is useful in multiple ways. Dolphins have to remember to breath or else they will die, so the fact that one side of the brain is ... ... middle of paper ... ...n years can’t even start speaking to dolphins. What is even more astounding is that dolphins even have their own names!