Building Blocks: Mass Extinctions
The ultimate example of an environmental change leading to the termination of a species is what's known as a mass extinction.
Subject: adapt
Transcript: :] were dinosaurs maladapted poorly adapted To the environment? Clearly not, they lasted for millions and millions of years, But then we know some major
Building Blocks: Ancient Fossils, Modern Technology
As scientists work to answer vexing questions about the origins of life, they examine the fossilized remains of the primitive life forms which at one time populated early Earth. The challenge in doing this is not only a function of the age of the fo...
Subject: adapt
Building Blocks: Role of Evolution in Early Life
The ability to adapt to changing or difficult conditions is clearly necessary if an organism is to be biologically successful.
Subject: adapt
Transcript: muscle systems, Nervous systems and so on came to be. [narrator:] the ability to adapt to changing or difficult conditions, one of the fundamental