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Tree crickets turn leaves into baffles to make themselves sound louder by making a hole in the centre.

Crickets make leaf amplifiers

... by the females who can use them to identify males of their own species from other males and find the males. These tree ... aid that helps them be louder than they would be on their own. Chris - Really what do they do? Natasha - They make a ... this? Natasha - So between a cricket that singing on its own and one in an optimal baffle there's a four times change. ...

A show of raised hands

Life as a scientific group leader

... is why she says three - "as well as be a mother; to be my own postdoc because I can't afford one; to be a lab ... a moving train; and, suddenly, you have to stand on your own two feet and - it sounds to me - from this that so many ...