Bioacoustics specialists study the sounds that animals make, such as the songs of birds and the buzzing of insects. They use this knowledge to learn more about how animals behave and how to keep them safe from threats like planes or predators. Bioacoustics is also important for farming. In this video, you can learn how negative numbers are used by bioacoustics specialists to track pests on crops and predict where they are going.

• Main math topic: negative numbers.
• Other math topics: percentage of a number, calculating the mean, Cartesian coordinate plane, absolute value of a number and linear function.
• Science topics: properties of waves (frequency and amplitude).