what is the average size of a sea otter
Sea otter The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg (31 and 99 lb), making them the heaviest members of the weasel family, but among the smallest marine mammals. Unlike most marine mammals, the sea otter's primary form of insulation is an exceptionally thick coat of fur, the densest in the animal kingdom. Although it can walk on land, the sea otter is capable of living exclusively in the ocean.
Short-faced bear In a recent study, the mass of six A. simus specimens was estimated, one-third of them weighed about 900 kg (1 short ton), the largest being UVP 015 at 957 kg (2,110 lb), suggesting specimens that big were probably more common than previously thought.[2] It stood 8–10 feet (2.4–3.0 m) tall on hind legs[8] while a large specimen would have been 11–12 feet (3.4–3.7 m) tall with a 14-foot (4.3 m) vertical arm reach. When walking on all fours, it stood 5–6 feet (1.5–1.8 m) high at the shoulder: It was tall enough to look a man in the eye.[9][10][11] At Riverbluff Cave, Missouri, a series of claw marks up to 15 feet (4.57 m) high have been found along the cave wall indicating short-faced bears up to 12 feet (3.66 m) tall.[12][13]