Air date: 2002-11-20

Runtime: 58 min

From the tiniest bat to the massive blue whale, all mammals share the ability to nurture their young on milk and regulate their own temperatures.

Air date: 2002-11-27

Runtime: 58 min

Mammals from tiny shrews to giant anteaters have specialised in eating insects. Some have even pursued their prey into the skies.

Air date: 2002-12-04

Runtime: 58 min

The plant eaters take on the largely indigestible, spiny and poisonous defences of plants with some spectacular physical adaptations to diet.

Air date: 2002-12-11

Runtime: 58 min

Special tools like chisel sharp front teeth and underground dwelling enable this group of mammals to feast on roots and seeds.

Air date: 2002-12-18

Runtime: 58 min

Predators and prey must evolve speed, endurance and manoeuvrability to outwit each other, and the pack hunters must maintain order in the ranks.

Air date: 2003-01-08

Runtime: 58 min

A mammal capable of having a varied diet can be highly adaptable and exploit new environments including the cities where they thrive.

Air date: 2003-01-15

Runtime: 58 min

With perfect streamlined bodies and great underwater speed, seals, dolphins, porpoises and whales became the new hunters of the sea..

Air date: 2003-01-22

Runtime: 58 min

A range of adaptations from sucker-feet to gripping tails help the tree dwellers to survive, and in the dark forest super senses come in to play.

Air date: 2003-01-29

Runtime: 58 min

In the daily hubbub of monkey life, only those with a talent for social wheeler dealing get ahead, driving the shift towards larger brains.

Air date: 2003-02-05

Runtime: 58 min

The natural world was transformed when one great ape began to walk upright - us. But why has this led to the development of our extraordinary brains?