Biology

Are Lions and Tigers the same Species

Panthera leo (Lion) and Panthera tigris (Tiger) are two large feline animals that are strikingly similar. The genus Panthera is comprised of the Lion, Tiger, Panther, and Leopard, all of which are in the “cat” family: Felidae. Generally, one assumes that the great tigers and mighty lions of…
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What are Ectoprocts

Ectoprocts are tiny, sessile marine and freshwater invertebrates that live in colonies. They are moderately successful, having about 500 species worldwide and they are abundant,m found attached to hard substrates such as rocks, shells and wood in the benthos from…
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What are Leeches

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…
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What are Myriapods

Myriapods are terrestrial arthropods with many legs. Centipedes, millipedes and the lesser known pauropods and symphylans are the four main groups of myriapods. None of them have a thousand legs, as the name millipede suggests. The maximum count is 175…
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What is a Black Widow Spider

GENERAL INFORMATION The 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…
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What are Acanthocephalans

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…
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