 | 1791 - 508 páginas
...known to fleep with their young on their breaft, and to fwim with them on their back; but if they mould be unfortunately overtaken by the hunters, the dam...young ones in the moment of danger, and therefore mares their fate. ' From the formation of the lungs they are unable to remain under water longer than... | |
 | Hubert Howe Bancroft - 1884 - 768 páginas
...reclining on their breast. . .The cubs are incapable of swimming till they are several months old. . .She will not leave her young ones in the moment of danger, and therefore shares their fate. . . Th<>y are unable to remain under water longer than two minutes. . .The male... | |
 | Alexander Begg - 1894 - 600 páginas
...their breast. . . . The cubs are incapable of swimming until they are several months old. . . . She will not leave her young ones in the moment of danger, and therefore shares their fate. . . . They are unable to remain under water longer than two minutes. . . . The male... | |
 | Alexander Begg - 1894 - 596 páginas
...their breast. . . . The cubs are incapable of swimming until they are several months old. . . . She will not leave her young ones in the moment of danger, and therefore shares their fate. . . . They are unable to remain under water longer than two minutes. . . . The male... | |
 | 1791 - 508 páginas
...to fleep with their young on their breaft, and to fwim with them on their back ; but if they ihould be unfortunately overtaken by the hunters, the dam...formation of their lungs, they are unable to remain under waterlonger thantwominutes, when they are forced to rife to the furface for refpi ration ; and it is... | |
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The cubs are incapable of swimming until they are several months old. . . . She will not leave her young ones in the moment of danger, and therefore shares their fate. . . . They are unable to remain under water longer than two minutes. . . . The male... 