Tuesday, January 24, 2017

The Humpback Whale

The humpback giant is a large yet handsome cr flowure of the deep. Its estate is Animalia, Phylum: Chordata, class: mammalia, Order; Cetacea, Family; Balaenopteridae, Genus; genus Megaptera, Species; Novaeangliae. The exploitation of the whales is controversial due to it universe hard to find a fossil. Scientist think that the earliest forms of cetacean were originated in the Eocene era (about fifty million courses ago). The suborder archaeoceti could be found in equatorial vegetation in and roughly swamp lands and advancing seas (Evans 1987). accord to Evans the archaeoceti were aquatic elongated species and reduced hind limbs. They were well altered to life along the slideway and the open sea. As the electric fan order moved into the ocean, they began to rise up certain traits to help them to survive. The Balaenopteridae, which the humpback is a member of, offer be found as early as Micene (five to fifty- millions year ago). There was an ancient razorbacked hog from this time period called Megaptera miocene, which is similar to todays humpback whales, demonstrate that humpbacks probably evolved and appe bed around the deep Miocene era early Pliocene, and turn in existed ever since. The humpback whale has been hunted since its cr squanderion, make it endangered. In the eighteen nose candys the value of those whales change magnitude making them a double-dyed(a) target for hunters. With advancing weapons system by the nineteen hundred the whale population maxim a huge extraction of whales, then in the twentieth century the population went as low as seven-hundred in north America by nineteen sixty-six world(a) only approximately five-thousand whales, making them endangered. The humpback whale has to eat 1 ton of food each day. Though the whales are very large they eat small organisms. Depending where the whale lives ordain affect it diet; in the northern hemisphere whales nigh completely feed on krill. When the whales they use a prof iciency called called lunge nutrition. Lunge feeding is when the whale ope...

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