News tagged with common ancestor

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The similarities in red, green algae

(PhysOrg.com) -- For Debashish Bhattacharya, the knowledge that half the oxygen on Earth is generated by algae through photosynthesis begs an important evolutionary question: How did algae come to be such ...

Feb 15, 2011
4.2 / 5 (5) 0 | with audio podcast

Scientists advance understanding of food pathogen

Listeria is an opportunistic pathogen that causes brain infection, blood poisoning, abortion and death for about 500 Americans and a number of farm animals each year. But while its harmful strains can be more lethal than ...

Jan 12, 2011
4.3 / 5 (3) 0 | with audio podcast

Plague came from China: scientists

The first outbreak of plague occurred in China more than 2,600 years ago before reaching Europe via Central Asia's "Silk Road" trade route, according to a study of the disease's DNA signature.

Nov 01, 2010
4.8 / 5 (6) 0