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Extras

Video thumbnail: PBS NewsHour The Evolution of Our Throwing Shoulder

PBS NewsHour

The Evolution of Our Throwing Shoulder

Neil Roach explains why humans throw with such high velocities.

The Evolution of Our Throwing Shoulder

Video thumbnail: PBS NewsHour Gay Rights Advocates Score Supreme Court Victories

PBS NewsHour

Gay Rights Advocates Score Supreme Court Victories

Gay Rights Advocates Score Supreme Court Victories on Same-Sex Marriage

Gay Rights Advocates Score Supreme Court Victories

Video thumbnail: PBS NewsHour Hot, Dry Winds Help Spread Deadly Valley Fever Infections

PBS NewsHour

Hot, Dry Winds Help Spread Deadly Valley Fever Infections

Hot, Dry Winds Help Spread Deadly Valley Fever Infections

Hot, Dry Winds Help Spread Deadly Valley Fever Infections

Video thumbnail: PBS NewsHour In Texas, Marathon Filibuster Derails New Abortion Bill

PBS NewsHour

In Texas, Marathon Filibuster Derails New Abortion Bill

In Texas, Marathon Filibuster Derails New State Restrictions on Abortion

In Texas, Marathon Filibuster Derails New Abortion Bill

Video thumbnail: PBS NewsHour In Texas, Marathon Filibuster Derails New Abortion Bill

PBS NewsHour

In Texas, Marathon Filibuster Derails New Abortion Bill

In Texas, Marathon Filibuster Derails New State Restrictions on Abortion

In Texas, Marathon Filibuster Derails New Abortion Bill

Video thumbnail: PBS NewsHour The Winners and Losers in Court's Decision on Gay Marriage

PBS NewsHour

The Winners and Losers in Court's Decision on Gay Marriage

The Winners and Losers in Court's Decision on Gay Marriage

The Winners and Losers in Court's Decision on Gay Marriage

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