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Ah, well this just happens to be something I’m into! There is a NOVA movie about the chicxulub (pronounced chick-zaloob) asteroid that hit Mexico and initiated the extinction of the dinosaurs. It’s called The Day the Dinos Died, season 44 episode 21. It’ll show you the ways scientists use different pieces of evidence to create a timeline of the destruction based on new fossils in South Dakota. Very new and cutting edge. They actually found a fragment of the original asteroid.
At the time, our mammal ancestor was kinda like a squirrel rat, nocturnal and lived underground. It would take 5 million more years before our intrepid grandma would venture out of the ground and inherit the Earth. 65 million years later, mammals are the wonderful animals we see today.
Ok, want your mind blown? There is a book called Evolution by Stephen Baxter. It’s fiction but it tells the story of hominid evolution starting from the Chicxulub asteroid. Each chapter is a segment of the life of one likely ancestor on the road to modern humans over those 65 million years. It’s very well written and puts together many well accepted pieces of evidence in a compelling way.
By the way, physical anthropology is the name of the field that covers hominid and human evolution and is it’s own subject.