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Horizon

S21 · E10 — Signs of the Apes, Songs of the Whales

S21:E10 · Signs of the Apes, Songs of the Whales

Episodes

22 episodes in this season

E1

The Intelligence Man

60 min

E2

Microworld!

60 min

E3

A New Green Revolution?

60 min

E4

Spies in the Wires

60 min

E5

Valley of the Inca

60 min

E6

The Conquest of Parasites

60 min

E7

Reflections on a River

60 min

E8

A Normal Face

60 min

E9

Prisoners of Incest

60 min

E10
Now Playing

Signs of the Apes, Songs of the Whales

60 min

E11

Professor Bonner and the Slime Moulds

60 min

E12

The Mind of a Murderer: The Case of the Hillside Strangler

60 min

E13

The Mind of a Murderer: The Mask of Madness

60 min

E14

A Cruel Inheritance

60 min

E15

The Malvern Link

60 min

E16

Contented Cows and Other Animals

60 min

E17

Picking Winners

60 min

E18

The Brain Puzzle

60 min

E19

Global Village

60 min

E20

Ivan

60 min

E21

A Mathematical Mystery Tour

60 min

E22

Supercharged

60 min