Kim Kardashian is packing up her house — and making some difficult choices about what to save.

Do you know how many teeth you will have in your lifetime? Which animal are your teeth most similar to? And do you know what the first toothbrushes were made of? With Radio 4’s In Our Time ...

Dogs have fascinating teeth that play a crucial role in their daily lives, from eating to defending themselves and even communicating with other animals. These sharp and sturdy tools are essential ...