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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.

American cockroach Back to the top page of brain gallery
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Author Comment
Kuramochi
2006-04-12
18:26
American cockroach/ Periplaneta americana
The American cockroach is a large species of cockroach that is winged and growing to a length of 2.5 cm to 4 cm. It is very common in the southern United States and in tropical climates, and it can be found in many locations throughout the world due to its travels via shipping and commerce between locations. This insect is believed to have originated from Africa. It prefers warmer climates and is not cold tolerant, but it may be able to survive indoors in colder climates.
They have a brain, subesophageal ganglion, 3 thoracic ganglia and 6 abdominal ganglia linked in line with a pair of connectives, representing the basic design of the insect nervous system.

Infomation

ID43
AuthorKuramochi
Date2006-04-12
SeqC03
Views4295
Keyword

Arthropoda
  • Insecta
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