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Life on Earth

Life on Earth: A Natural History by David Attenborough is a BBC nature documentary series about a study of the evolution of life on the planet. The series consists of thirteen episodes and begins with David Attenborough's opening narration: "There are some four million different kinds of animals and plants in the world. Four million different solutions to the problems of staying alive. This is the story of how a few of them came to be as they are." The first episode is devoted to illustrating the diversity and origins of life on Earth. And then through the next 12 episodes the series looks at the evolution of living creatures including the sea-living creatures, insects, amphibians, reptiles, birds, mammals, primates and humans.

Episode 04 - The Swarming Hordes. This episode details the relationship between flowers and insects. There are some one million classified species of insect, and two or three times as many that are yet to be labelled. Around 300 million years ago, plants began to enlist insects to help with their reproduction, and they did so with flowers. Although the magnolia, for instance, contains male and female cells, pollination from another plant is preferable as it ensures greater variation and thus evolution. Flowers advertise themselves by either scent or display. (from wikipedia.org)

Episode 04 - The Swarming Hordes


Go to Life on Earth Home or watch other episodes:

Episode 01: The Infinite Variety
Episode 02: Building Bodies
Episode 03: The First Forests
Episode 04: The Swarming Hordes
Episode 05: The Conquest of the Waters
Episode 06: Invasion of the Land
Episode 07: Victors of the Dry Land
Episode 08: Lords of the Air
Episode 09: The Rise of the Mammals
Episode 10: Theme and Variations
Episode 11: The Hunters and Hunted
Episode 12: Life in the Trees
Episode 13: The Compulsive Communicators