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Science, Biology, Flora and Fauna, Animalia, Echinodermata, Echinoidea

See also:

Science: Biology: Developmental Biology: Model Organisms: Sea Urchin (1)

http://www.microscopy-uk.org.uk/mag/artaug05/rh-seaurchin.html

» Calcareous Flowers: Tests and Cross-sections of Sea Urchin Spines. - Photographic study by Richard Howey with some fine photographs of the intricate beauty of these structures.

http://www.nhm.ac.uk/research-curation/projects/echinoid-directory/intro/introduction.html

» Echinoid Directory - Biology, phylogeny, and classification of sea urchins.

http://www.nhm.ac.uk/palaeontology/echinoids/

» The Echinoids - Information about sea urchins, such as how they live, feed, and reproduce. There is also an alphabetic listing of their taxa. From The Natural History Museum, London.

http://www.peterbrueggeman.com/nsf/fguide/echinodermata5.html

» Heart Urchin: Abatus sp. - Photographs and information on several species of heart urchin found in McMurdo Sound in Antarctica.

http://www.fao.org/fi/website/FIRetrieveAction.do?dom=species&fid=3621

» Loxechinus albus - Factsheet from the FAO on the Chilean Sea Urchin which is eaten in Chile and Peru, its distinguishing features, distribution, habitat and biology.

http://encarta.msn.com/encnet/refpages/RefArticle.aspx?refid=761560371

» MSN Learning & Research Plus: Sea Urchin - Online encyclopedia article.

http://www.peterbrueggeman.com/nsf/fguide/echinodermata20.html

» Pencil Urchin: Ctenocidaris perrieri - Photographs and information on this urchin found in the icy waters of Antarctica.

http://www.starfish.ch/collection/seeigel.html

» Photos of Sea Urchins - Photos of Echinoidea from the Indo-Pacific, with text about behavior, habitat, and characteristics.

http://en.wikipedia.org/wiki/Red_sea_urchin

» Red Sea Urchin - Information from Wikipedia on this species, Strongylocentrotus franciscanus, including its description, feeding habits, behavior and reproduction.

http://www.microscopy-uk.org.uk/mag/artjul00/urchin1.html

» Sea Urchin: A Stinging but Amazing Animal - Article by Jean-Marie Cavanihac on these animals with many photographs of their development.

» Sea Urchin Embryo - A page from the Laboratory of Embryonic Gene Expression, included here for three beautiful photographs.

» Sea Urchin Embryology - Laboratory modules using sea urchin eggs to explore fertilization and development.

http://www.microscopy-uk.org.uk/mag/artmay02/urchin2.html

» Sea Urchins Revisited - Photographic study by Jean-Marie Cavanihac of the sea urchin with some microscopic features of interest to the amateur naturalist.

http://www.peterbrueggeman.com/nsf/fguide/echinodermata1.html

» Sterechinus neumayeri - Photographs and information on this urchin found in Antarctica which often camouflages itself with bits of shell and debris.

http://webs.lander.edu/rsfox/invertebrates/strongylocentrotus.html

» Strongylocentrotus drobachiensis - Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of the green sea urchin.

http://digimorph.org/specimens/Strongylocentrotus_purpuratus/

» Strongylocentrotus purpuratus - Photograph and information on the purple sea urchin.

http://www.microscopy-uk.org.uk/mag/artdec02/rhcharge.html

» Who is in Charge Here? - Illustrated article by Richard L. Howey considering how creatures with no brains, such as the sea urchin, react appropriately to their surroundings.

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