Sometimes in science, a question can be so hotly debated that attempting to answer it can become a lifetime project.

And more often than not these questions are ones that we didn’t even realise were up for debate.

In plant biology, the topic getting researchers all hot under the collar at the moment is the question of whether plants can be intelligent or not and this week's guest is just one of the many voices in the debate.

Paco Calvo is Principal Investigator in the MINT (Minimal Intelligence) lab at the University of Murcia and co-author of 'Planta Sapiens: Unmasking Plant Intelligence'. He joins Jonathan to discuss.