But echidnas are mammals, so they feed their young, called puggles,with milk.

VOA: special.2009.07.07

Many gained their freedom through the so-called "underground railroad."

VOA: special.2009.04.16

Preschoolers who attend these so-called 'forest kindergartens' spend all their time learning outside from nature.

VOA: standard.2010.06.25

"We should take the Pakistani Taliban, and specifically the so-called TTP, Tehrik-e-Taliban Pakistan, at their word, "Their leaders have been saying for some time that they want to strike targets outside their own region, and they've talked about the United States, they've talked about the U.K.

VOA: standard.2010.05.05

"Let's go from here," he said "Let's scrap the bill. Let's build health care reform that respects the limited government and liberty of the American people, so help us God!" Grassroots conservatives, many of them members of the so-called Tea Party movement, are out in force at the rally, eager to spread their anti-Obama, anti-tax,anti-big government message.

VOA: standard.2010.03.18