Scientists have a new explanation for why it can be so difficult to swat a fly. According to research, body parts called the halteres help flies elude humans. These sensory organs are dumbbell-shaped evolutionary remnants of wings. Listen to hear about the experiment that led to this discovery and learn about the advantages that help flies escape swatters so effectively.
Story Length: 2:09
Socrative users can import these questions using the following code: SOC-1234