What Is Echocardiography? Echocardiography (EK-o-kar-de-OG-rah-fee), or echo, is a painless test that uses sound waves to create moving pictures of your heart. The pictures show the size and shape of your heart. They also show how well your heart's chambers and valves are working.
Taxonomy/Description. The Giant Otter's scientific name is Pteronura brasiliensis, which means winged tail belonging to Brazil, although this otter species is not limited to Brazil. Winged refers to the fin-like shape of the giant otter's tail. The giant otter is a member of the weasel family, Mustelidae, in the Mammalian Order of Carnivora.
Sea otters are the smallest marine mammals. Sea otters are members of the weasel or Mustelidae family and are closely related to the mink and river otters. Since otters spend most of their time in the water, their hind feet are webbed and adapted for swimming.ur: A sea otter's fur is the thickest and finest of any mammal. They have 850,000 to 1,000,000 hairs per square inch consisting of two layers, an undercoat and longer guard hairs. The sea otter uses air trapped between their hairs to keep themselves insulated in cold waters.