Most bryozoans live in the sea, but there are also many species in fresh water. The bryozoan genus Metrarabdotos has been used as a textbook example in evolutionary biology and paleontology, showing ...

The diversity and complexity of life on Earth is astonishing: 8 million or more living species – from algae to elephants – all evolved from a simple, single-celled common ancestor around 3.5 billion ...

Introduction to the show's theme: the "arms race" between predator and prey as a driving force in evolution. Example where a microbe is predator, humans are prey Russian prisons have spawned a deadly ...