The animals that roam free.
"Charismatic mega-fauna" like lions, but also tiny field mice - wildlife comprises all animals that are not domesticated. From the strange to the beautiful, wild mammals, birds and fish can play important roles in the ecosystem. And humans often depend on wildlife to survive.
The illegal wildlife trade is one of the world's biggest contraband markets. According to the World Wildlife Fund, animal trafficking rakes in as much €17 billion a year. Yet the illegal trade in animals for pets goes mostly unnoticed. The population of the Barbary macaque has declined by 50 percent over the past two decades, and Nik Martin went to find out more about a recent ban on their trade.
Nairobi is the only capital city in the world that has a national park full of wildlife within its city borders. That means the occasional lion or leopard sometimes makes its way into residential areas — often with fatal consequences for the animals.