Leaves have many different jobs: photosynthesis, gas exchange, water exchange, and more. But how do they end up in the shapes that they are? Joining Jonathan to discuss is Dr Katie Gray Ferris, Assistant Professor in the Department of Ecology and Evolutionary Biology at Tulane University in the United States.

Leaves have many different jobs: photosynthesis, gas exchange, water exchange, and more. But how do they end up in the shapes that they are? Joining Jonathan to discuss is Dr Katie Gray Ferris, Assistant Professor in the Department of Ecology and Evolutionary Biology at Tulane University in the United States.

Futureproof Extra: How leaves form their shapes

Jonathan responds to your texts and tweets, is joined in studio for all the latest science stories for Newsround and speaks to one of our two guests featured on the show.

Listen and subscribe to Futureproof with Johnathan McCrea on Apple Podcasts and Spotify.

Download, listen and subscribe on the Newstalk App.   

You can also listen to Newstalk live on newstalk.com or on Alexa, by and asking: 'Alexa, play Newstalk'

Science

Jonathan responds to your texts and tweets, is joined in studio for all the latest science stories for Newsround and speaks to one of our two guests featured on the show. Listen and subscribe to Futureproof with Johnathan McCrea on Apple Podcasts and Spotify. Download, listen and subscribe on the Newstalk App. You can also listen to Newstalk live on newstalk.com or on Alexa, by and asking: 'Alexa, play Newstalk'

Jonathan responds to your texts and tweets, is joined in studio for all the latest science stories for Newsround and speaks to one of our two guests featured on the show.

Listen and subscribe to Futureproof with Johnathan McCrea&nbsp;on Apple Podcasts and Spotify.

Download, listen and subscribe on the Newstalk App.&nbsp;&nbsp; 

You can also listen to Newstalk live on newstalk.com or on Alexa, by and asking: 'Alexa, play Newstalk'

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Futureproof Extra: How leaves form their shapes

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