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 03 - The First Forests. This episode examines the earliest land vegetation and insects. The first plants, being devoid of stems, mainly comprised mosses and liverworts. Using both sexual and asexual methods of reproduction,
they proliferated. Descended from segmented sea creatures, millipedes were among the first to take advantage of such a habitat and were quickly followed by other species. Without water to carry eggs, bodily contact between the sexes was now necessary.
This was problematical for some hunters, such as spidersand scorpions, who developed courtship rituals to ensure that that the female didn't eat the male.
(from wikipedia.org)
| Episode 03 - The First Forests |
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