News tagged with common ancestor

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Humans, sharks share immune-system feature

A central element of the immune system has remained constant through more than 400 million years of evolution, according to new research at National Jewish Health. In the September 29, 2011, online version ...

Sep 30, 2011
4.7 / 5 (7) 0 | with audio podcast

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