The missing lynx: how the rise of border walls has split up wildlife populations
In an age of growing hostility to migrants, there are 10 times more barriers on borders than when the Berlin Wall fell. But as well as the human cost, animals are unintended victims
Book of the day
Is a River Alive? by Robert Macfarlane review – streams of consciousness
An impassioned plea to save our rivers combines poetry and adventure
Country diary
Country diary 1975: A green tide is rising rapidly from the valleys
26 April 1975: I dare say some boffin will soon invent a super grass that will flourish on peaty moorlands where now only heather survives