Air date: 2014-02-18

Runtime: 22 min

Sir David Attenborough uses this episode to investigate two animals who are capable of true virgin birth - the production of offspring without the need for sex.

Air date: 2014-02-18

Runtime: 22 min

This episode explores the story of two animals that hide behind seemingly impregnable coat of arms. Can Sir David Attenborough get in behind their armour and reveal their mysteries?

Air date: 2014-02-25

Runtime: 22 min

Sir David Attenborough continues to shine the spotlight on nature's most amazing animals this time looking at the vision in squid and owls. Perhaps not a classic pairing, both owls and squid have incredible adaptations for being able to navigate at night.

Air date: 2014-02-25

Runtime: 22 min

Here we discover that some animals are able to trick others into believing they are something that they are not. The art of deception is a powerful attribute for some.

Air date: 2014-03-04

Runtime: 22 min

After initially gaining frightening reputations, it's now known that gorillas and bats are a lot gentler and considerate than their early reputations suggest.

Air date: 2014-03-04

Runtime: 30 min

Plants and animals have some curious super senses that enable them to see, hear and feel things that are quite invisible to us.

Air date: 2014-03-11

Runtime: 30 min

In this episode we explore the remarkable adaptations of two creatures that have evolved to survive the most challenging of conditions and seem to defy the laws of nature.

Air date: 2014-03-11

Runtime: 30 min

We'll find out how nature is incredibly inventive and has produced two unique mechanisms of natural construction that have fascinated scientists for centuries; weaving in birds and silk.

Air date: 2014-03-18

Runtime: 30 min

"Strange Parents" asks how we usually recognise animals as either male or female and how each sex normally plays a particular role in their own life cycle. However both hyenas and seahorses completely break the gender rules.

Air date: 2014-03-18

Runtime: 30 min

"Magical Appearances" explores how swallows magically appear each spring and asks how did complex and beautiful insects like butterflies suddenly arrive in the summer. The discovery of the swallow’s epic migration and the revelation that butterflies could metamorphose into totally different looking adults were scientific stories both cloaked in mystery and controversy.