Weak wrists surprise you. You pick up a weighted bag or attempt a plank, and before you know it, everything is wobbling.

Some calm waters hide a shark that can leave the ocean and push deep into rivers, following routes most predators cannot. We trace how bull sharks survive the freshwater challenge, why juveniles treat ...

The narrow road through the Masurian countryside winds alongside shimmering lakes and mossy swamps. It passes through sleepy villages filled with steep-roofed houses that, even on a warm summer’s day, ...

What happens when you commit to 200 push ups every day for 30 days? In this video, I put that question to the test with a no-excuses bodyweight challenge. From sore arms to surprising gains, I share ...