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New article, hope it's comprehensible!
'''Chordata''' is a [[phylum]] of [[animal]]s, named after their common feature - possession of a [[spinal cord]].
The phylum includes several [[class (biology)|classes]]:
*'''Mammalia''' - the [[mammal]]s
*'''Aves''' - the [[bird]]s
*'''Reptilia''' - The [[reptile]]s
*'''Amphibia''' - the Amphibian]]s (such as [[frog]]s, [[newt]]s and [[salamander]]s)
*'''Pisces''' - the [[fish]]
There are also several obscure animals including the [[acorn worm]], [[lancelet]] and [[hagfish]].
Apart from the spinal cord, other common features include a single [[brain]] and a zig-zag [[muscle]] structure in the [[torso]].
Scientists believe that the chordata are closest to the [[arthropoda]] (shelled, joint-legged animals such as [[insect]]s and [[crustacean]]s) and [[annelida]] (earthworms) in biology, due to common features such as [[segment]]ation, which are not seen in other phyla such as the [[mollusca]] (molluscs) or [[coelenterata]] [[jellyfish]] and [[sea anemone]]s.
[[category:biology]]
The phylum includes several [[class (biology)|classes]]:
*'''Mammalia''' - the [[mammal]]s
*'''Aves''' - the [[bird]]s
*'''Reptilia''' - The [[reptile]]s
*'''Amphibia''' - the Amphibian]]s (such as [[frog]]s, [[newt]]s and [[salamander]]s)
*'''Pisces''' - the [[fish]]
There are also several obscure animals including the [[acorn worm]], [[lancelet]] and [[hagfish]].
Apart from the spinal cord, other common features include a single [[brain]] and a zig-zag [[muscle]] structure in the [[torso]].
Scientists believe that the chordata are closest to the [[arthropoda]] (shelled, joint-legged animals such as [[insect]]s and [[crustacean]]s) and [[annelida]] (earthworms) in biology, due to common features such as [[segment]]ation, which are not seen in other phyla such as the [[mollusca]] (molluscs) or [[coelenterata]] [[jellyfish]] and [[sea anemone]]s.
[[category:biology]]