"Why do people behave differently in a crowd?" and "How did dinosaurs mate?" BBC Click Radio presenter Gareth Mitchell answers life's big questions
Considering their size, insects can whirr, click, bang and whine pretty impressively. In Japan, caged crickets are kept for their songs just as British pet owners might keep a canary. Researchers at the University of York, on the other hand, are developing listening devices to detect larvae chomping through wood. And tiger moths produce clicks so sophisticated they can jam the sonar systems used by bats to find them. Paul Evans conducts this insect chorus.