Environmental officials in Colombia released some 300 sea turtles — most of the carey species — along the country's northern Caribbean coast as part of an effort to boost the turtle population, which is threatened by human activities. Last week, the turtles were set free in their natural habitat in the waters of the Islas del Rosario by experts from the national parks division of the Environment Ministry.

“Blas”, named for a local resident who had adopted him, was the oldest turtle to be released. He had spent the last 25 years in a tank on one of the Rosario islands.