For the record

Animal evolution: In the Feb. 23 Section A, an article about the tendency of animals to get bigger over time said that scientists studied the evolution of marine mammals over a span of nearly 550 million years. The scientists examined many types of marine animals, not just mammals.

Higher Learning: In the Feb. 25 California section, the Higher Learning column about alternatives to traditional four-year colleges said that Davidson College had started an adult learning institute. Although some Davidson professors teach in the program, the college is not involved.

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