Post by Sach-Crabministrator on Sept 30, 2013 21:33:24 GMT -5
The oldest fossil containing a brain yet to be found, was from an extinct arthropod.
Photo: Xiaoya Ma; inset: Nicholas Strausfeld
This fossil is more than 520 million years old!
With only minor changes to the structures relating to the eyes, antennae & other sensory organs it is nearly identical to modern day Coenobita clypeatus' brains. This not only means that the brains of our crabs has changed very little for millions of years but also shows scientific evidence of complex brains much earlier than scientists believed and those amazing little creatures we share our homes with descended from these early pioneers of nature!
A modern brain in an ancient body: A reconstruction of the brain of the 520 million year-old fossil Fuxianhuia protensa (left), which has a very simple body shape, yet shows unexpected similarity to the complex brain of a modern crustacean, such as the land hermit crab (Coenobita clypeatus) pictured on the right. (Illustration: Nicholas Strausfeld)
kitty: Not much activity in my tank. One morning I got up and it looked like a tornado went through it. Water bowls tumbled, food dishes upside down. Fixed it all up and have been waiting eversince. ! Nothing. DARN !!
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