Why does the sea taste so salty? As the Earth Unplugged team discovers, it’s our rivers that have a huge part to play. Read more...
From jaw-dropping sacrifices to super-pregnancies, Earth Unplugged reveals the world’s most impressive animal mothers
Forget what you've seen in the movies, the biggest cause of snowslides might surprise you. Read more...
The most stunning images from the worlds of science and technology this week, including a frozen Niagara Falls and a rocket launched into an aurora. Read more...
