Extras

    Video thumbnail: Nature Super Cats: Episode 3 | Science and Secrets | Preview

    Nature

    Super Cats: Episode 3 | Science and Secrets | Preview

    It's a critical time for cat research and conservation.

    Super Cats: Episode 3 | Science and Secrets | Preview

    Video thumbnail: Nature Are lions the most intelligent cat?

    Nature

    Are lions the most intelligent cat?

    Dr. Natalia Borrego works with lion whisperer Kevin Richardson to carry out lion IQ tests.

    Are lions the most intelligent cat?

    Video thumbnail: Nature The Truth About Tiger Populations

    Nature

    The Truth About Tiger Populations

    Like so many other wild cats, survival of the tiger is on a knife edge.

    The Truth About Tiger Populations