Video: One cell eating another

Watch as these two microscopic, single-celled protozoans (protists), battle it out, resulting in one eating the other. These organisms inhabit almost any body of still water (ponds, lakes, reservoirs) and the oceans, and ...

The four most promising worlds for alien life in the solar system

The Earth's biosphere contains all the known ingredients necessary for life as we know it. Broadly speaking these are: liquid water, at least one source of energy, and an inventory of biologically useful elements and molecules.

'Wrong-way' migrations stop shellfish from escaping ocean warming

Ocean warming is paradoxically driving bottom-dwelling invertebrates—including sea scallops, blue mussels, surfclams and quahogs that are valuable to the shellfish industry—into warmer waters and threatening their survival, ...

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