File:EB1911 Palaeontology - convergent evolution.jpg
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English: Analogous or convergent evolution in fish, reptile and mammal. The external similarity in the fore paddle and back fin of these three marine animals is absolute, although they are totally unrelated to each other, and have a totally different internal or skeletal structure. It is one of the most striking cases known of the law of analogous evolution (see legend below). |
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| Date | published 1911 | |||
| Source | “Palaeontology,” Encyclopædia Britannica (11th ed.), v. 20, 1911, p. 587, fig. 10. | |||
| Author | Charles R. Knight, under the direction of Professor Osborn. | |||
| Permission (Reusing this file) |
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English: Legend:
A, Shark (Lamna cornubica), with long lobe of tail upturned.
B, Ichthyosaur (Ichthyosaurus quadricissus), with fin-like paddles, long lobe of tail down-turned.
C, Dolphin (Sotalia fluviatilis), with horizontal tail, fin or fluke.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:25, 27 November 2017 | | 607 × 653 (119 KB) | Bob Burkhardt | {{Information |Description ={{en|1=Analogous or convergent evolution in fish, reptile and mammal. The external similarity in the fore paddle and back fin of these three marine animals is absolute, although they are totally unrelated to each other, a... |
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