Fin Whale

Animal Unique | Fin Whale | Finback whale is also known as Finback whale, Razorback, or common rorqual, is a marine mammal belonging to the suborder of baleen whales. It is the second largest living animal after the blue whale. Fin whales are found in all oceans of the world. They can to subtropical waters for mating and calving during the winter months and colder regions of the Arctic and Antarctic migrate for feeding during the summer months, but recent evidence suggests that fin in place can propagate in the deep ocean water in winter than migrate between winter and summer regions.

Scientific classification
Kingdom:     Animalia
Phylum:     Chordata
Class:     Mammalia
Subclass:     Eutheria
Order:     Cetacea
Suborder:     Mysticeti
Family:     Balaenopteridae
Genus:     Balaenoptera
Species:     B. physalus

Fin whale is usually distinguished by his great height and slim build. The whale is a brownish gray top and sides and a whitish underside. He has a pointed snout, paired blowholes, and a broad, flat rostrum. Two lighter colored arrows begin midline behind the holes and the sides sloping downward toward the tail in a diagonally upward to the dorsal fin, sometimes forward recurve on the back. It has a large white patch on the right side of the mandible, while the left side of the jaw is gray or black. This type of asymmetry can sometimes be seen in minke whale, fin whale is the only asymmetry is universal and is unique among cetaceans and is one of the keys to making a full identification.

Hypothesized to have evolved as the whale swims on its right side when surface lunging and often circles to the right, while on the surface above a prey patch. However, the whales repeatedly circle to the left. There is no accepted hypothesis to explain the asymmetry. When the whale surfaces, the dorsal fin is visible soon after the spout. The spout is vertical and narrow and can reach a height of 6 meters. The Fin whale will blow one up several times each time you visit the surface, remain near the surface for about one and half minutes each time. The tail remains submerged in the surface order. Then dive to a depth of 250 meters each dive lasting between 10 and 15 minutes. Whales are known to leap completely out of the water.

The Fin whale is a filter feeder, feeding on small schooling fish, squid and crustaceans including mysids and krill. The Fin whale is one of the fastest cetaceans and can support speeds of 37 km per hour and full of more than 40 kilometers per hour were recorded, earning the fin whale the nickname "the greyhound of the sea". Fin whales are gregarious than other rorqual, and often live in groups of 6-10, but the feeding groups of up to 100 animals. Like other whales, the male fin is long, hard, low frequencies. The sounds of the blue and fin whales are the lowest frequencies made by any animal. Fin whales are most often found alone, but groups of 3-7 individuals are common and larger groups may occur at times. The whale's blow is high and the shape of an inverted cone. The dive series is 5-8 blows approximately 70 seconds apart for a long dive. Fin whales are not increasing their tail fins long dive, which can be as deep as 230 m.

Fin whales are classified as endangered species. Their speed and their preference for the vastness of the sea, gave them almost complete protection against the early whalers. Modern whaling methods, however, fin whales were easy victims. If blue whales were depleted, the whaling industry turned to the smaller, still abundant fin whales. Current populations are estimated at about 40,000 in the northern hemisphere and may as many as 15.000 to 20.000 in the southern hemisphere, this is only a small percentage of the original population levels.

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