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 global trade in ornamental fish is multi-million dollar industry. But popular movies like "Finding Nemo" can help fuel the demand for colorful home aquariums. Kids in Germany have been waiting in anticipation for "Finding Dory," which features a forgetful tang fish. But conservationists and animal welfare activists have mixed feelings about it.