Aired: 11/20/2002
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.
Aired: 11/27/2002
Mammals from tiny shrews to giant anteaters have specialised in eating insects. Some have even pursued their prey into the skies.
Aired: 12/4/2002
The plant eaters take on the largely indigestible, spiny and poisonous defences of plants with some spectacular physical adaptations to diet.
Aired: 12/11/2002
Special tools like chisel sharp front teeth and underground dwelling enable this group of mammals to feast on roots and seeds.
Aired: 12/18/2002
Predators and prey must evolve speed, endurance and manoeuvrability to outwit each other, and the pack hunters must maintain order in the ranks.
Aired: 1/8/2003
A mammal capable of having a varied diet can be highly adaptable and exploit new environments including the cities where they thrive.
Aired: 1/15/2003
With perfect streamlined bodies and great underwater speed, seals, dolphins, porpoises and whales became the new hunters of the sea..
Aired: 1/22/2003
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.
Aired: 1/29/2003
In the daily hubbub of monkey life, only those with a talent for social wheeler dealing get ahead, driving the shift towards larger brains.
Aired: 2/5/2003
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?
