When exercise can hurt you; how to keep your memory sharp; 9 simple ways to boost your mental health
How your pet experiences the world; ‘genius’ dogs; the rare half male/half female cardinal
What should a president be? Look at George Washington. Plus, could Pluto again be our ninth planet?
Your bones need more than Vitamin D. Plus, finding Tut; the first sack of Rome; a new giant anaconda
This backpack is a game-changer. Plus: A raincoat you can recycle
Spy cat: America’s $20 million ‘Acoustic Kitty’. Plus, love and volcanoes; a mystery heart-shaped island
National parks too crowded? Visit a national forest instead
Melanoma is overdiagnosed at ‘alarming’ rates. Plus, see-through squids?
