Miz Lisagore says they began to notice how rare it was to find travel writing that recognized environmental problems and solutions.

VOA: special.2009.04.22

But keep in mind that the scientists say this mutated gene may be rare.

VOA: special.2009.08.26

"And to break records by that sort of margin is something which is extremely rare."

VOA: standard.2009.09.03

"What makes it so rare is that it is highly endangered in the wild, in Sumatra, and it is so hard to get to bloom in cultivation."

VOA: standard.2010.07.30

In the early 1990s, Klug had been diagnosed with a rare disease known as Primary Sclerosing Cholangitis (PSC), a rare degenerative liver condition that requires a transplant.

VOA: standard.2010.02.26

These genes are involved in a number of inherited metabolic disorders, including Tay Sachs, a rare,incurable and usually fatal disease that causes the destruction of nerve cells in young children.

VOA: standard.2010.02.11

This is clear that this was a mistake,". He added that incidents such as this one are rare, especially after the United States imposed new restrictions on air strikes in an effort to avoid civilian casualties.

VOA: standard.2009.11.07