Living Fossils' Aren't Really a Thing

The video discusses the concept of living fossils, species that appear unchanged over millions of years. It challenges the notion that these organisms haven't evolved, highlighting examples like crocodilians and tuatara. The video explains that while some species may look similar to their ancient ancestors, they have undergone significant genetic changes. It emphasizes that evolution is a constant process, even if changes are not always visible.

What are some examples of animals that are often referred to as living fossils?

Why is the term 'living fossil' considered problematic according to the text?

How did Charles Darwin contribute to the concept of living fossils?

What evidence is provided in the text to suggest that organisms like the tuatara are not truly unchanged?

In what ways do the crocodilians mentioned in the text illustrate the concept of evolutionary change?