Vida en la Tierra

The video explains the history of life on Earth, starting from a time when the planet was devoid of any living organisms. It describes the emergence of simple life forms in the oceans, followed by the evolution of plants and animals. Over billions of years, life diversified, leading to the rich biodiversity we see today, including the appearance of humans.

What types of living beings appeared after the first fish?

In what way is Earth described today compared to its past?