Dugong vs Manatee Sea Cows Dugongs and manatees

Dugong vs Manatee Sea Cows Dugongs and manatees
dugong or sea cow vs manatee the middle The snout of a dugong is broad, short, and trunk-like. Some manatees have been found with over 50 scars on them from propeller blades. Natural causes of death include adverse temperatures, by crocodiles on young slow aquatic mammals found along tropical and subtropical Atlantic coasts and associated inland Florida manatees are large, aquatic mammals that are native to Florida. Adult manatees are typically 9-10 feet long from snout to tail and weigh around 1,000 pounds; however, they may grow to over 13 feet long and weigh more than 3,500 pounds. Manatees have two fore limb flippers that they use for steering movements and to hold vegetation while eating. A large, round, flattened paddle-shaped tail is used for swimming. The dugong is a species of sea cow found throughout the warm latitudes of the Indian The dugong is the only sirenian in its range, which spans the waters of some 40 countries and territories throughout The dugong has been hunted for thousands of years for its meat and oil. Traditional hunting still has great cultural significance in several countries in its modern range, particularly northern Australia and the Pacific Islands. The dugong's current distribution is fragmented, and many populations are believed to be close to extinction. Dugongs are found in warm coastal waters from the western Pacific Ocean to the eastern coast of Africa, The earliest records revealing the presence of in the northern Pacific are from California and California. It is believed that the existence of a Central American seaway during the Miocene provided a means for species which had previously occurred in the tropical waters of the Caribbean to eventually make their way to the Pacific.
An Inside Look In May 2000, a San Diego Natural History Museum paleontologist, discovered fossils including a skull of H. while working in the field at the construction site of the Ranch planned community . Graders were constructing the Village 1 West phase of the development when the fossil was uncovered in Pliocene marine of the San Diego Formation. This represents the most complete and best preserved specimen yet found. Recovery of the skull took four hours, but did not interfere with the construction schedule.
was a huge animal, and could have reached 22,046 pounds (10 metric tons) in weight. One specimen found in San Diego County probably represents an individual over 30 feet (9 meters) long, the largest in the world. The bulbous body of with thick blubber, had a whale-like tail, and short forelimbs lacking complete finger bones. The bones were extremely dense, which might have helped to compensate for the animal's buoyancy.
The Pleistocene, the geologic era immediately preceding our own, was an age of giants. North America was home to mastodons and saber-tooth cats; mammoths and rhinos roamed Eurasia; giant lizards and bear-sized wombats strode across the Australian outback. Most of these giants died at the by the end of the last Ice Age, some 14,000 years ago. Whether this wave of extinctions was caused by climate change, by humans, or some combination of both remains a subject of intense debate among
Complicating the picture, though, is the fact that a few Pleistocene giants survived the Quaternary extinction event and nearly made it intact to the present. Most of these survivor species found refuge on islands. Giant sloths were still living on Cuba 6,000 years ago, long after their relatives on the mainland had died out. The last mammoths died out just 4,000 years ago. They lived in a small herd on Island north of the Bering Strait between the Chukchi and East Siberian Seas. Two-thousand years ago, gorilla-sized lemurs were still living on Madagascar. A thousand years ago, 12-foot-tall birds were still foraging in the forests of New Zealand.
Unlike the other long-lived sea cows, one of the last of the Pleistocene survivors to die out, found their refuge in a remote scrape of the ocean instead of on land. The sea cows were relatives of the manatee and dugong. Unlike those two species, they were adapted to living in frigid Arctic waters. They were also much larger, growing to be as long as 30 feet from tail to snout, versus 10 for a manatee. Before the Ice Age, they seem to have been ubiquitous along the edge of the Pacific, living everywhere from Japan to the Peninsula. By the 18th century, when they were first made known to Western science, the sea cows were confined to waters surrounding two tiny Arctic Islands in the Commander Chain, in between the Aleutians and the Kamchatka Peninsula.
The sea cows were first described by the German naturalist in the 18th century. was part of an expedition organized led by the Danish explorer Vitus Bering. Financed by the Imperial Russian government, its mission was to chart the waters between Siberia and North America, and find a workable route between the two if possible.

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