Centuries: 18th century - 19th century - 20th century
Decades: 1810s 1820s 1830s 1840s 1850s - 1860s - 1870s 1880s 1890s 1900s 1910s
Years: 1858 1859 1860 1861 1862 - 1863 - 1864 1865 1866 1867 1868
Arts, Sciences, Literature and Philosophy
... the polyp stage and is characterized by a either a non-moving (sessile) stalk that catches food drifting by or a similar form that is free-floating. The second form is ...
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