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The seals frequently visit popular tourist beaches, often giving birth there, which creates a hazard for both the seal and the human, as mothers are aggressive and protective of their young.
The skull of the leopard seal. The leopard seal has a distinctively long and muscular body shape when compared to other seals. The overall length of adults is 2.4–3.5 m (7.9–11.5 ft) and their weight is in the range 200 to 600 kilograms (440 to 1,320 lb), making them the same length as the northern walrus but usually less than half the weight.
On May 5, 1971, [3] Scottie Dunning discovered a tiny male harbor seal pup on the shore of Cundy's Harbor, Maine. After a failed attempt at locating the pup's mother, Dunning called his brother-in-law George Swallow for help. When Swallow arrived, the two searched for the mother seal and later found her dead among the rocks. [4]
Other human-introduced pathogens, including leptospirosis, have infected monk seals. [40] Human disturbances have had immense effects on the populations of the Hawaiian monk seal. Monk seals tend to avoid beaches where they are disturbed; after continual disturbance the seal may completely abandon the beach, thus reducing its habitat size ...
[6] [7] As of 2014, the common name long-nosed fur seal has been proposed for the population of seals inhabiting Australia. [ 1 ] Although the Australian and New Zealand populations show some genetic differences, their morphologies are very similar, and thus they remain classed as a single species.
Brown fur seals are still harvested in Namibia. Permits are issued for the killing of pups for their luxurious fur and adult males for their genitalia, which are considered an aphrodisiac in some countries. It is also considered necessary to limit seal numbers in Namibia because of the supposed effect seals have on the country's fish harvest.
Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...
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