Proceedings of the Royal Society B: Biological Sciences Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2021, 288 (1946), pp.20203007. ⟨10.1098/rspb.2020.3007⟩ Proceedings of the Royal Society B: Biological Sciences, 2021, 288 (1946), pp.20203007. ⟨10.1098/rspb.2020.3007⟩