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Tick   (Parasitiformes)
Category: Invertebrates

 

 

Ticks are small, blood-sucking arachnids of the order Parasitiformes, with over 900 known species. They most likely emerged during the Cretatious (65-145 million years ago), and have thrived in warm, humid climates, ever since. Parasites, ticks survive by drinking the blood of their hosts -- typically mammals or birds, occasionally reptiles or amphibians -- an act that in and of itself is typically not harmful, but one that makes them a serious vector for diseases that affect humans and other animals, such as Lyme disease.

 

Data & Facts

Scientific Classification
Kingdom - Animalia
Phylum - Arthropoda
Class - Arachnida (Subclass: Acari)
Order - Parasitiformes

 
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Interesting Animal Facts

The world’s first Animals

Invertebrates were the first animals to evolve. While their soft bodies left precious few records behind, there are fossils of sponge-like animals that are 665 million years old, as well as traces of tracks and burros from worm-like animals going back 1 billion years. By comparison, the earliest birds appeared only 150 million years ago! And not only were invertebrates first, they are the most plentiful of animals - it is estimated that 97% of all animals living on the Earth today are invertebrates, with several groups containing more species than all vertebrates combined!

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