'Fishapod' reveals origins of head and neck structures of first land animals

(PhysOrg.com) -- Newly exposed parts of Tiktaalik roseae--the intermediate fossil between fish and the first animals to walk out of water onto land 375 million years ago--are revealing how this major evolutionary event happened. A new study, published this week in Nature, provides a detailed look at the internal head skeleton of Tiktaalik roseae and reveals a key intermediate step in the transformation of the skull that accompanied the shift to life on land by our distant ancestors.

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<p><a href="http://www.physorg.com/news143295238.html">'Fishapod' reveals origins of head and neck structures of first land animals</a></p> <p>(PhysOrg.com) -- Newly exposed parts of Tiktaalik roseae--the intermediate fossil between fish and the first animals to walk out of water onto land 375 million years ago--are revealing how this major evolutionary event happened. A new study, published this week in Nature, provides a detailed look at the internal head skeleton of Tiktaalik roseae and reveals a key intermediate step in the transformation of the skull that accompanied the shift to life on land by our distant ancestors.</p>