We may think of plants as passive life forms, but they can cooperate, share resources, send one another warnings, and distance themselves from their communities when survival depends on it.
Researchers have unearthed a 'biological switch' which could boost crop yield worldwide.
It is a good time to ask how the travel and tourism industry has contributed to racism and how that can change.
The television dramas have not exaggerated the horrors of the slave trade. The reality was often even worse for Africans taken from their homes.