Environment

Reporting in the journal Biology Letters, Jeremy Goldbogen and colleagues say blue whales perform underwater acrobatics when they're eating: they rotate 360 degrees while they gulp krill. Reaching 90 feet in length, blue whales are the largest animals on the planet. Goldbogen is studying their dining habits to understand what fuels their growth.

In the city's public schools, test scores are climbing, charter schools are opening all the time, and facilities are being upgraded. But the population of the schools is overwhelmingly African-American. The head of one charter school network says it takes a long time to break old patterns.

In the city's public schools, test scores are climbing, charter schools are opening all the time, and facilities are being upgraded. But the population of the schools is overwhelmingly African-American. The head of one charter school network says it takes a long time to break old patterns.

Five years after Hurricane Katrina, trauma and stress still play a part in the emotional lives of New Orleans residents. The evidence: In 2008 and 2009, the suicide rate in Orleans Parish was twice as high as it was the two years before the levees broke.

Five years after Hurricane Katrina, trauma and stress still play a part in the emotional lives of New Orleans residents. The evidence: In 2008 and 2009, the suicide rate in Orleans Parish was twice as high as it was the two years before the levees broke.

When Hurricane Katrina hit New Orleans five years ago, more than 5,000 families lived in the city's public housing developments. Now, only a third of them are back in public housing. While some who are in the new developments are struggling with the different community, others are over the moon with the shiny new units.

When Hurricane Katrina hit New Orleans five years ago, more than 5,000 families lived in the city's public housing developments. Now, only a third of them are back in public housing. While some who are in the new developments are struggling with the different community, others are over the moon with the shiny new units.

Five years ago, just after Hurricane Katrina hit, Scott Simon traveled to Bay St. Louis, Miss., where the eye of the storm came ashore. The town was devastated. He now returns to find out what's happened to the people and the place he profiled at the time.

Five years ago, just after Hurricane Katrina hit, Scott Simon traveled to Bay St. Louis, Miss., where the eye of the storm came ashore. The town was devastated. He now returns to find out what's happened to the people and the place he profiled at the time.