Bonobos are quick to help a person who doesn’t know something that they know. That’s a sign that they can figure out the mental states of others.

The average fastball speed for pitchers 10 years old and younger is between 40-50 mph.

When you say you have 20/20 vision, it means you see at 20 feet what an average person can see at 20 feet. In the UK, they’d say you have 6/6 vision, for six meters.

In 1931, all Montessori schools in Italy were closed because Maria Montessori refused to force her teachers to pledge loyalty to the fascist party.

The average lifespan for a mourning dove is about 2 to 4 years, but some may live as long as 10-15 years. The oldest mourning dove lived to be 30 years old. He was banded in 1968 and shot by a hunter in Florida in 1998.

This article appears in February 14 • 2025.

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