Could plants have cognitive abilities? Michael Gross  Current Biology  Volume 26, Issue 5, Pages R181-R184 (March 2016) DOI: 10.1016/j.cub.2016.02.044 Copyright © 2016 Terms and Conditions

Tobacco consumer: The caterpillar of the moth Manduca sexta is remarkably resistant to nicotine. If under attack from this species, the tobacco plant appears to know this and refrains from increasing its nicotine production. (Image: British Entomology Volume 5, John Curtis.) Current Biology 2016 26, R181-R184DOI: (10.1016/j.cub.2016.02.044) Copyright © 2016 Terms and Conditions

Wooded web: The root space of plants is a highly complex and insufficiently understood system described as the rhizosphere. It enables communication both among plants and between plants and other species. (Photo: Nerys Hamutal Groß, https://www.flickr.com/photos/nerysgross/) Current Biology 2016 26, R181-R184DOI: (10.1016/j.cub.2016.02.044) Copyright © 2016 Terms and Conditions

Roots connection: Microscopy image from a study into the cellular mechanism of the symbiosis between plant roots and Glomus versiforme mycorrhizae. (Photo: reproduced from Curr. Biol. (2015) 25, 2189–2195.) Current Biology 2016 26, R181-R184DOI: (10.1016/j.cub.2016.02.044) Copyright © 2016 Terms and Conditions

Five strokes: The Venus flytrap appears to count how many times its sensory hairs inside the trap have been touched. Only after five mechanical signals does the digestion of the prey set in. (Photo: © Laura Dottori.) Current Biology 2016 26, R181-R184DOI: (10.1016/j.cub.2016.02.044) Copyright © 2016 Terms and Conditions