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Genetic Genealogy

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Fossil may be ancestor
of most animals
From the journal Science: The earliest known ancestor of most animals may have been a minute creature shaped like a flattened helmet and barely visible to the naked eye. • FULL STORY

Science

• Listen to the universe's primal scream
Simulation produces post-Big Bang sounds

• Physicist explores space and time
‘Fabric of the Cosmos’ surveys scientific frontier

• String theory goes on television
‘Elegant Universe’ takes on cosmic conundrums

MORE ON MYSTERIES OF THE UNIVERSE

• Speed-of-light debate flashes again

• Scientists seek dark matter on Earth

• Test of gravity’s speed upholds Einstein

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FROM SCIENCE MAGAZINE

• Fossil may be ancestor of most animals• Dog genes tell surprising tales• How fins evolved into feet• Scientists study past and future Dust Bowls• How your brain handles love and pain

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