A process defining organisms that grow and adapt to stimuli while maintaining a state of organization and energy production and being capable of reproduction.

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How close to Earth's core can organisms live?

We don't to know much about organisms living deep below the Earth's crust. Recently a team led by S. Giovanni discovered some microbes 300 m below the ocean floor. The microbes were found to be a ...
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Have there been any studies on 'surf balls'? (not related to surfing)

I know the title sounds like something else, but I'm actually wondering about these things, which are also apparently called 'whale burps': This one was found on a beach on Lake Michigan. Does ...
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What are the tests performed by NASA's Mars rovers to establish that life could survive on the planet?

I am particularly interested in the Mars Rovers, which are out there trying to find life. Do they believe that the tests they perform are sufficient to verify the existence of life (Also please ...
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Does urchin metamorphosis involve two animals?

An urchin larva becomes an adult urchin through metamorphosis. This fascinating documentary about metamorphosis suggests that the urchin larva "dies", being partially eaten by the new individual, the ...