Above, two bees, two marmots, a tropical palm, a heron and a crane; below, two spiders, a treelike plant, two fish and a tunicate animal of the class Ascidiacea. Engraving by Heath.

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Above, two bees, two marmots, a tropical palm, a heron and a crane; below, two spiders, a treelike plant, two fish and a tunicate animal of the class Ascidiacea. Engraving by Heath. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.