Her milk is six times richer than cow's milk. The young are nursed regularly for four months and may not be totally weaned for up to 14 months. Their eyes open at 28 to 35 days. They begin to swim at three months and are catching fish at four months. Adult size is attained at age two and sexual maturity occurs at age two to three.
Scent marking is done to delineate territorial boundaries and communicate sexual state.
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