Haeckel vs Ernst Haeckel

Haeckel and Ernst Haeckel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Haeckel	Yes	No	No	No
Ernst Haeckel	Yes	No	No	No

As nouns, Haeckel and Ernst Haeckel are synonyms defined as:

Haeckel and Ernst Haeckel: German biologist and philosopher; advocated Darwinism and formulated the theory of recapitulation; was an exponent of materialistic monism (1834-1919)

Other synonyms of Haeckel include Ernst Heinrich Haeckel.

Haeckel (noun)	Ernst Haeckel (noun)
German biologist and philosopher; advocated Darwinism and formulated the theory of recapitulation; was an exponent of materialistic monism (1834-1919)	German biologist and philosopher; advocated Darwinism and formulated the theory of recapitulation; was an exponent of materialistic monism (1834-1919)