David Attenborough's Natural Curiosities - Season 4 - Eps 4: Curious Counters
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?
About David Attenborough's Natural Curiosities

Title: David Attenborough's Natural Curiosities
First Air Date: 2013-01-29
Last Air Date: 2017-06-25
Status: Ended
Rating: 7.156/10 (from 16 votes)
Language: EN
Seasons: 4
Total Episodes: 27
Network: Eden U&W
Genres: Documentary
Production Companies: Unknown
Synopsis
Sir David shines the spotlight on some of nature’s evolutionary anomalies and reveals how these curious animals continue to baffle and fascinate.
Cast

David Attenborough
Self - Presenter