CALHOUN BOND, Ph. D.

Professor of Biology, Greensboro College

CONTENTS:

Crawling Sponges

Biology Web-Links

College/Education Information Links

Addresses

CRAWLING SPONGES

These are photomicrographs of the edges of living sponges crawling on petri dishes. You can see individual cells and spicules (thin glassy shards) in the thin leading margins.  Sponges can SLOWLY move along (1-4 mm/day) by the amoeboid crawling of the marginal cells. The forces generated at the crawling margin not only can move the sponge, but these forces also produce continuous rearrangement of the sponge's internal anatomy, including its skeleton of glassy spicules. This form of locomotion may be unique to sponges among the animals. To give an idea of the scale of these photos, the spicules are about 1.20 mm long in the left photo and 0.15 mm long in the right photo.  Sponges and their cellular dynamics are an important part of my research. For more information, you can check some of the web-links below, as well as a list of my recent publications.

Sponge wound-healing video (QuickTime)
(Field: @2 mm, 900X real time, species: Aplysilla longispina)

Other Downloads (pdfs and videos):

http://www.gborocollege.edu/~bondc/downloads.htm

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OTHER BIOLOGY LINKS

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COLLEGE/EDUCATIONAL LINKS:

Greensboro College

Recommended Course Timeline for students who want to apply to graduate schools and/or medical schools

Radiologic Technology Combined Degree

Physician Assistant Preparation

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Addresses:

E-mail: bondc@gborocollege.edu

Real mail:
Dr. Calhoun Bond
Professor of Biology
Greensboro College
815 W. Market St.
Greensboro, NC 27401æ USA

phone: 336-272-7102, ext. 353
Fax: 336-271-6634

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© July 2008 by Calhoun Bond