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Invertebrate Brain Gallery

Many invertebrate animals have evolved a rich variety of brains (head ganglia). Unusually large brains of squids and octopuses and small but sophisticated brains of arthropods, especially those of insects, are among the most fascinating brains created on earth by natural selection. Here, photographs of invertebrates of 6 phyla, 35 orders and 47 species and those of their central nervous systems are presented, with brief explanations of their characteristics. Enjoy seeing the pictures and consider evolution of brains in invertebrates. These images can be only used for research and education freely. Providers (Dr. Makoto Mizunami) have copyright for images and documents.

Red swamp crawfish Back to the top page of brain gallery
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Author Comment
Kuramochi
2006-05-18
18:01
Red swamp crawfish/ Procambarus clarkii
Body length: 12 cm.
P. clarkii prefers warm fresh water, such as slowly-flowing rivers, marshes, reservoirs, irrigation systems and rice paddies. P. clarkii grows quickly and is capable of reaching weights in excess of 50 g and sizes of 5.5–12 cm in length. The burrowing activities of P. clarkii can damage water courses and crops, particularly rice crops, and its feeding can disrupt native ecosystems.
The central nervous system is similar to that of the lobster; it consists of a relatively large brain, a small subesophageal ganglion, 5 thoracic ganglia and 6 abdominal ganglia.

Infomation

ID47
AuthorKuramochi
Date2006-05-18
SeqB05
Views5056
Keyword

Arthropoda
  • Crustacea
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