Information about the Scaphopods (Phylum Mollusca)
By: M E Skeel
Scaphopods are a small class of molluscs with shells shaped like elephant tusks, which gives them their common name of tusk shells. The name scaphopod means shovel-foot but it is actually their 'head' that they use for burrowing through the marine sediments where they live...
Information about tape worms (Platyhelminthes Cestoda)
By: M E Skeel
Tapeworms are flatworms that are totally adapted for a life of parasitism. They look as if they are segmented but it is not true segmentation such as that found in the annelids. Instead tapeworms are included in the Phylum Platyhelminthes, because they have no coelom...
Information about Nemertean Worms (Phylum Nemertea)
By: M E Skeel
Nemerteans or ribbon worms are small, flat, acoelomate worms related to flatworms. They are abundant in the littoral zone of temperate oceans where they make tubes in mud and sand or crawl among the rocks and seaweeds. There are about 1500 species worldwide, most in...
Unravelling the complexity of Crustacean anatomy and taxonomy
By: M E Skeel
Crustaceans are sometimes called the insects of the sea, because they are both Mandibulate Arthropods and because, while the insects may rule on land, the crustaceans rule in the water. The other great group of Arthropods are the Chelicerates, which are animals such as spiders...
The primordial soup theory
By: Danelle Karth
We know that the earth is full of life. What is difficult to say is how that life began on earth billions of years ago. There are a number of theories with no proof of anything specific. One such theory is the primordial soup theory...
By: Danelle Karth
Primordial soup is the theory that life began in a warm (or hot) pond or ocean of water. The ingredients aren't known and only supposed from studies of ancient rocks, dating of different materials, and from supposed knowledge of how the earth was when life...
Eating habits of Great White sharks
By: Sandra Petersen
Great white sharks (Carcharodon carcharias) have gotten a bad reputation for attacking humans. Contrary to myth and misinformation, great white sharks do not desire human beings as prey. To unravel the mystery behind how great white sharks capture their prey, scientists have examined what these...
The twisted world of gastropods (Mollusca: Class Gastropoda)
By: M E Skeel
The gastropods are animals like snails and slugs, limpets and whelks, abalone and cone shells. They form the largest class in the Phylum Mollusca. Gastropod means stomach-foot and all the members of this class are possessed of this strange characteristic: a big muscular foot on...
Facts about Chitons (Mollusca: Class Polyplacophora)
By: M E Skeel
Ah the Amphineura. What are they and does anybody care? I do, because I like primitive forms and the 8 plated chitons are the second most primitive members of a pretty important invertebrate phylum, the Mollusca. Only the mysterious solenogasters, the aplacophora, may be more...
Pelecypods: The lives of bivalve molluscs
By: M E Skeel
The phylum mollusca has a Class named Pelecypoda, which means hatchet footed and refers to the shape of the foot in these mostly sessile bivalves. Clams and Oysters, Mussels and Pippies are all pelecypods Some of the most economically important shellfish are pelecypods, starting with...

 

1 145 146 147 148 149 371