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"A kind of tailless monkey."

Ape

"A kind of tailless monkey."

An English naturalist who established that all species of life have descended over time from common ancestry. He proposed the theory of natural selection and evolution.

Charles Darwin

An English naturalist who established that all species of life have descended over time from common…

(1890-1882) Naturalist known for his theories of Evolution and Natural selection

Charles Robert Darwin

(1890-1882) Naturalist known for his theories of Evolution and Natural selection

Generic development of the horse's foot. A, Foot of Eohippus; B, That of Orohippus; C, That of Hipparion; D, that of horse. The digits are numbered, when present, I. to V.

Evolution of Horse Foot

Generic development of the horse's foot. A, Foot of Eohippus; B, That of Orohippus; C, That of Hipparion;…

"Feet of horse and its predecessors. 1, Palaeotherium; 2, Anchitherium; 3, Hippotherium; 4, Equus." -Thomson, 1916

Horse Feet

"Feet of horse and its predecessors. 1, Palaeotherium; 2, Anchitherium; 3, Hippotherium; 4, Equus."…

A British lawyer who popularized the concept of uniformitarianism.

Sir Charles Lyell

A British lawyer who popularized the concept of uniformitarianism.

"The famous English evolutionist, Herbert Spencer, was born in Derby in 1820." —The Popular Cyclopedia, 1888

Herbert Spencer

"The famous English evolutionist, Herbert Spencer, was born in Derby in 1820." —The Popular Cyclopedia,…

An English philosopher who developed the conception of evolution.

Herbert Spencer

An English philosopher who developed the conception of evolution.