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As humans have cut into Brazil's forests, the toucan population has taken a dive. The trees, in turn, have changed, too: Without large-billed birds to eat fruit with big seeds, only trees with small seeds thrive. Eventually, one scientist says, "the impacts on the forest could be quite dramatic."

Colombia's FARC rebels are engaged in peace talks with the government, but the group is also stepping up recruitment of child soldiers. Thousands of children may have become rebels in recent years, and efforts are underway to rehabilitate some of them.

Brazil has more household workers per capita than any other country. A new law in the South American nation expanded the rights of domestic workers. But despite the law being on the books now for almost two months, there is still a long way to go in changing the social dynamic in Brazil.

Alfonso Portillo was taken from a hospital bed in Guatemala City and flown to New York to face charges of laundering $70 million through U.S. banks.

A Guatemalan court says because of a legal dispute, part of the genocide trial must start over for former dictator Efrain Rios Montt. His 80-year prison term was thrown out, and human rights activists are furious.

Only a small core of the 2,300-year-old Mayan structure remains after earth-moving equipment destroyed the rest, archaeologists say.

Efrain Rios Montt was found guilty of ordering more than 1,700 people's deaths. His conviction is a boost for those who push for respect for human rights in the region.

The genocide trial of former Guatemalan dictator Efrain Rios Montt ended Friday with a conviction. A panel of judges found him guilty after a six-week proceeding. Rios Montt, however, denies responsibility for massacres and other crimes committed against Mayans during his 1982-1983 rule.

The Pallas' long-tongued bat has a neat trick at the tip of its tongue — tiny hairlike structures that fill with blood and stand straight out. This turns the tongue into a nectar-slurping mop at just the right time.

President Obama traveled to Central America this weekend, to Mexico and then to Costa Rica, where he met with other leaders from the region. Host Rachel Martin speaks with Eric Olson of the Woodrow Wilson International Center for Scholars, who attended the meeting.