Lars-Henrik Olsen is a zoologist, writer, and lecturer. He has worked at the Zoological Museum in Copenhagen and the World Wildlife Fund, and is the producer of a number of Danish ...lihat lebih banyakLars-Henrik Olsen is a zoologist, writer, and lecturer. He has worked at the Zoological Museum in Copenhagen and the World Wildlife Fund, and is the producer of a number of Danish radio and television programs. His books include Small Freshwater Creatures.lihat lebih sedikit