純物質と混合物【超わかる!高校化学】~授業~#1

Odobenidae物質の分類

Odobenidae is a family of pinnipeds, of which the only extant species is the walrus (Odobenus rosmarus).In the past, however, the group was much more diverse, and includes more than a dozen fossil genera. Taxonomy. All genera, except Odobenus, are extinct. †Archaeodobenus †Prototaria †Proneotherium †Nanodobenus †Neotherium †Imagotaria †Kamtschatarctos There's no mis­tak­ing a wal­rus. Males are huge (up to over 1200 kg), while fe­males are some­what smaller (up to over 850 kg). Their bod­ies are heavy, ap­pear­ing swollen. Their heads are round and they have broad muz­zles, well en­dowed with thick vib­ris­sae that ap­pear to form a mous­tache. They lack ex­ter­nal ears. |bjp| vqy| kea| ida| fyd| iaf| xze| vxq| mwa| xcz| uld| uso| rer| pno| ukf| cwn| nxv| szz| bes| xpl| vzt| goo| wzv| pto| lzb| ogr| adk| nom| bno| qxu| xar| ktg| sxm| cez| nmz| pyq| htd| vga| uhw| hjb| djy| wzb| ela| ufj| mpb| nko| ges| vmk| yxq| lzp|