Darwin's Amazing Animals
The Tama River runs through Tokyo - it's home to ayu, the queen of freshwater streams. Ten million of them go upstream to spawn every year, but many invasive species are now intruding on their oasis.
Darwin's Amazing Animals airs on NHK World - Japan HD at 9:10 PM, Saturday 10 May.
Topics
Arts ➝ Culture (without music)
General
Education ➝ Science ➝ Factual Topics
Nature ➝ Animals ➝ Environment