At Easter time, people recall the story of Peter denying Jesus three times before the rooster crowed. Some scientists tried to figure out what clicks the rooster's clock alarm.
Here are examples of recent claims in science that seem to contradict what some would consider intuitively obvious. They should be kept in mind when evaluating other scientific truisms, like evolution.
Surely one of the great mysteries of human life is how a single fertilized egg cell grows to an adult, with a brain sporting hundreds of billions of functional connections supporting abstract thought.