David Attenborough's First Life Season 1 Episode 2 Conquest
- December 11, 2010
- 59 min
In David Attenborough's First Life season 1 episode 2, titled "Conquest," viewers are taken on a journey through time to witness the emergence of the first complex life forms on Earth. Attenborough investigates the fossil record of the Cambrian period, a time 500 million years ago when life on Earth exploded in diversity and innovation.
The episode showcases a number of key species from the Cambrian period, including the terrifying Anomalocaris, a fearsome arthropod with razor-sharp claws and a body over a meter long. The documentary also introduces viewers to the trilobites, a group of hard-shelled arthropods that are now extinct but reigned supreme during the Cambrian.
As Attenborough guides viewers through the incredible diversity of life during the Cambrian, he highlights the incredible biological innovations that emerged during this period. For example, the episode details the development of eyes, which allowed animals to detect and respond to their environment with greater precision than ever before. Attenborough explains how the development of eyes sparked an evolutionary arms race, as predators and prey alike developed increasingly sophisticated adaptations to outmaneuver each other.
The documentary also explores the way in which different species vied for control of Earth's oceans during the Cambrian. Attenborough explains how the development of hard shells allowed some groups of animals to protect themselves from predators, while others evolved remarkable speed and agility to avoid being caught.
Throughout the episode, Attenborough emphasizes the way in which these early life forms laid the foundation for all the biological diversity we see on Earth today. By investigating the evolutionary origins of key modern features, such as eyes and hard shells, the documentary helps viewers see the incredible continuity that exists between the earliest life forms on Earth and the creatures that inhabit the planet today.
Overall, David Attenborough's First Life season 1 episode 2 is a fascinating exploration of one of the most critical periods in Earth's history. Through stunning visuals, expert analysis, and Attenborough's engaging narration, the episode brings viewers along on a thrilling journey through time to witness the emergence of the first complex life forms on Earth.