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Can animals count? This is a question that has intrigued and fooled investigators for a long time. Just over a hundred years ago, a German horse called Hans was declared a mathematical genius but all was not as it seemed. And strangely, some bamboos around the world flower exactly at the same no matter where they are – are they counting down the years?
初放送日 : Jan 29, 2013
最終放送日 : Jun 25, 2017
エピソード : 27 エピソード
シーズン : 4 シーズン
ランタイム: 22 分
国:
キャスト: David Attenborough
クルー:
