Space & Architecture |Ausgabe vom 17 March 2014

Space & Architecture

space | spacecraft | technology

Veröffentlicht von icelefant 17 March 2014

Wissenschaft Technologie

Heutiges Top-Thema Research.gov - SEE Innovation - Ear bones divulge an eel's true age Empfohlen von National Science Fdn www­.research.gov - Want to know how old a fish is? Check its ear bones. The bones, called otoliths, have growth rings just like growth rings in a tree, and many fish add one growth ring to their ear bones every year....

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