Evolution of Skeleton | Biology - Ashiro's LabZone

The development of the skeleton was one of the big events in evolution. For all big animals, except squids and octopuses, it is essential to move and hold their body in position. In 1753 the french natural scientist Georges Louis Leclerc de Buffon compared the skeletons of different mammals and hypothesized about the possibility of a common ancestry. Today more then 50'000 vertebrates are know of all kind and size, starting with the 30m big blue whale (Balaenoptera musculus) to the 7mm small anglerfish (Photocorynus spiniceps). However, the construction materials and principles of the blueprints are always the same.

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Photographs by Patrick Gries.

Amazing evolution of animals - teaches us not only why and how we evolve but also questions us why we could be also cruel to beings who don't harm us ?

Posted via web from Karen's Posterous

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