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Articles on Tree of Life

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Legendrea loyezae, a very rare ciliate that lives in oxygen-free sediments of lakes. James Weiss

How we found microbes rarer than a ticket to the Moon

Microbes are so tiny humans can’t see them without special equipment. But the discovery of 20 new species will help scientists map the evolutionary tree of life.
A mother hugs her son at the memorial of the Tree of Life synagogue in Pittsburgh on Oct. 27, 2019, the first anniversary of the shooting at the synagogue. AP Photo/Gene J. Puskar

How American anti-Semitism reflects the centuries-long struggle over the meaning of religious liberty

The US Constitution is supposed to protect freedom of religion. But in the 20th century, white Christian nationalists used this ideal to discriminate against Jews and justify their exclusion.
Squirrel Hill neighbors embrace, after hearing of the shootings at the Tree of Life synagogue, Oct. 27, 2018. Keith Srakocic/AP Photo

How Mister Rogers’ message of love might help us now

Fred Rogers was not blind to evil, but he still taught love in the face of it. His real neighborhood under attack, his neighbors showed love and forgiveness that can teach and inspire us all.

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