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Relatively few ecologists have studied the ways in which species - unconsciously, of course - make life easier for their neighbours. These positive interactions have generally been assumed to play relatively unimportant roles in ecosystems.

2007-02-03

 emergence of life
Evolution has never fashioned a lion or wolf the size of an elephant. Nor is it likely to, because such a "super-carnivore" would be unable to catch prey fast enough to fuel the energy demand of its enormous body, researchers conclude...

2007-01-16

 emergence of life
The exact moment when a 550-million-year-old cell began to divide has been captured in an exquisite 3D image.

2006-10-13

 emergence of life prehistory
There is evidence that life evolved in the deep sediments. ... There is clear evidence that life existed more than 3.8 billion years ago. Although, for there to be a big enough biomass for us to detect it in the rocks, it must have been evolving long before that. ... The normal view of life on Earth is that the majority of life is on the surface, fuelled by sunlight. And you don't expect a large population - even bacteria - to survive...

2005-02-23

 emergence of life immortality bacteria ocean prehistory
Life on Earth may have begun around 90 million years earlier than scientists had previously thought, a new fossil find suggests.

2010-08-18

 emergence of life Earth life evolution prehistoric civilization animal
Tiny, irregularly shaped fossils from South Australia could be the oldest remains of simple animal life found to date.

2010-08-18

 prehistoric civilization animal evolution emergence of life