Shark Evolution
Introduction
The evolution of sharks has been long and complex, beginning between 400 and 500 million years ago and spanning multiple mass extinctions to bring us today’s modern sharks. Sharks have evolved a wide variety of fascinating traits that have allowed them to remain as apex predators of the ocean. These physical adaptations have increased their fitness, allowing them to survive and reproduce at greater rates.
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Legend/credit: Electron micrograph of the Ebola Zaire virus. This was the first photo ever taken of the virus, on 10/13/1976. By Dr. F.A. Murphy, now at U.C. Davis, then at the CDC.
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Genetics
Phylogeny
Sharks belong to the taxonomic class Chondrichthyes that contains all cartilaginous fishCite error: Invalid <ref> tag; invalid names, e.g. too many
[1]
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References
- ↑ Bartlett et al.: Oncolytic viruses as therapeutic cancer vaccines. Molecular Cancer 2013 12:103.
- ↑ Lee G, Low RI, Amsterdam EA, Demaria AN, Huber PW, Mason DT. Hemodynamic effects of morphine and nalbuphine in acute myocardial infarction. Clinical Pharmacology & Therapeutics. 1981 May;29(5):576-81.
- ↑ 3.0 3.1 text of the citation
- ↑ Cite error: Invalid
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Edited by Madeleine Campbell, student of Joan Slonczewski for BIOL 116 Information in Living Systems, 2022, Kenyon College.
