Information about Gastrotrichs
By: M E Skeel
Gastrotrichs are members of a very small phylum of worm-like animals. They are microscopic in size but relatively common in freshwater environments and sandy beaches. There are about 400 described species worldwide. The freshwater species plus a few marine types belong to the order Chaetonotoidea...
Arachnids: Black widows
By: Carolyn Tytler
GENERAL INFORMATIONThe name black widow spider (latrodectus mactans) includes several varieties of related arachnids found in warm and temperate regions around the world. Like other spiders, they have two body sections: the cephalothorax which bears the head and legs and abdomen where the spinnerets are...
By: Janet Grischy
The universe is inconceivably vast. Anything can happen here. Therefore it is quite possible that there are lifeforms somewhere not based on DNA. Of course, given the vast coldness of the universe, life may be spread thin, so it is unlikely we will ever meet...
Information about the parasitic Acanthocephala
By: M E Skeel
Acanthocephalans, also known as thorny-headed worms, are parasitic pseudocoelomate worms whose larval stages parasitise arthropods while the adult worms live in vertebrate hosts. The common name comes from the curved hooks that the adult sports around the pharynx and which are used to hold the...
Facts about leeches (Phylum Annelida, Class Hirudinea)
By: M E Skeel
Another day, another worm. Today's worm is the leech. Now I know that the word leech gives a lot of people the same creepy feeling as the words tick or head lice, but there is an upside to leeches. After all, a leech used to...
Biography: Charles Darwin
By: Vivienne Mackie
CHARLES DARWIN'S BICENTENARYFeb 12, 1809-April 19, 18822009 is the 200th anniversary of the birth of Charles Robert Darwin and the 150th anniversary of the publication of his "Origin of the Species"(November 24, 1859), so it's a good time to examine the life of this famous...
How baby monkeys adapt to their environment
By: Rena Sherwood
Scientists and behaviorists have examined how baby monkeys learn in order to determine how human children learn. Baby monkeys and human babies are very similar. Monkeys, like people, are born with only a few basic instincts, such as knowing which way is up and to...
Migratory patterns of the Humpback whale
By: Johanna Kent
Traveling back and forth from the polar regions of the world, where big weather and food abounds, to tropical climates with gentle breezes and calm waters, humpback whales lead a nomadic lifestyle that many humans would envy.However far their travels seem to take the...
The most venomous reptiles of Central America
By: Joel La Rocque
South America has a vast animal wildlife population. Tourists find the wild primate population fascinating especially along food market strips. Monkey's beg for food and when food is withheld, stealing is an accepted alternative. Either way it is all quite entertaining. Iguanas lounge on park...
Facts about phoronids (phylum phoronida)
By: M E Skeel
The higher multicellular animal world can be divided into two major groups by their embryological development. The majority are protostomes in which the blastopore in the original ball of cells, the blastula, becomes the mouth of the developing organism. The Arthropods, Annelids and Molluscs are...

 

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