Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.
2015 • Health
Sandwiched between the Limpopo and Luvuvhu rivers in South Africa lies Pafuri, a multi-habitat area with astonishingly biodiverse animal and plant life--including the famous fever tree, rumored to cause illness to anyone who lives near it. Dive into this secret corner of Kruger National Park.
It's time to check up on the Nsefu lion pride as they welcome seven new cubs into the fold, but can these new arrivals survive the hardships ahead? One of the cubs, nicknamed The Dreamer, strikes up a friendship with the awkward, now-adolescent Misfit. Together, they forge a special bond that bodes well for their future. Do these two unlikely friends have what it takes to survive?
Focuses on our skin, our armpits, belly buttons.We are not alone. We are home to a trillion cells that are not our own, but are very much the making of us. Both on us and inside us live bacteria, viruses, protozoans, fungi, worms, lice and mites that we carry throughout our lives. To say that we are in a minority in our own body is an understatement. Our ‘private wildlife’ keeps us healthy, sometimes makes us ill and even changes our behavior.