I always wanted to make a model of an Elephant Seal in the same scale than other big animals. Just to see how immense he really is… My 1:20 model of a southern elephant seal bull is 30 cm long from nose to tail… (See the making process in the STS Forum) The seal gets its name from its great size and the large proboscis of the adult males, which is used to make extraordinarily loud roaring noises, especially during the mating season. Although not well known, this animal is colossally large, in particular the southern elephant species, the record-sized bull, shot in Possession Bay, South Georgia, on 28 February 1913, measured 6.85 long and was estimated to weigh 5,000 kg, clearly bigger than big rhinos and Hippos. Apart from his size, Elephant Seals are really very interesting species. One of the most remarkable facts is how similar are the two different species from the two poles. Being so far, it is incredible that they evolved in a quite similar way after millions and millions of years, something that I think it is no normal.
I can´t find a good explanation for that…The existence, for instance, of two so similar elephants subspecies, Indian and African, in two adjacent continents is easy to understand. But you can´t find neither Penguins in the Artic nor Polar bears in the Antarctica, just because there were no possibility for the ancestors of those animals, already tied to very cold weathers, to cross from one pole to the other…then, how could the ancestor of the elephant seal cross so long distance? …few millions years ago, when they surely were already adapted to very cold environments… However, there are other issues about these seals that really impress me. Elephant seals can hold their breath for more than 100 minutes. The average depth of their dives is typically about 300 to 600 m, for around 60 minutes for males. The deepest recorded dive of an elephant seal is more than 2,000 mts, much, much deeper than a nuclear submarine!!!. This is because the elephant seals have a very large volume of blood, allowing them to hold a large amount of oxygen for use when diving. They have large sinuses in their abdomens to hold blood and can also store oxygen in their muscles with increased myoglobin concentrations in muscle. In addition, they have a larger proportion of oxygen-carrying red blood cells. These adaptations allow elephant seals to dive to such depths and remain underwater for up to two hours. Other signifact is that this beast shows extreme sexual dimorphism in sizewith the males typically five to six times heavier than the females.
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AuthorI love animal replicas. I make them since I was a child an now I have restarted this passionate hobby. Archives
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