What happens when you discover a dinosaur? Paleontologist Kenneth Lacovara details his unearthing of Dreadnoughtus -- a 77-million-year-old sauropod that was as tall as a two-story house and as heavy as a jumbo jet -- and considers how amazingly improbable it is that a tiny mammal living in the cracks of the dinosaur world could evolve into a sentient being capable of understanding these magnificent creatures. Join him in a celebration of the Earth's geological history and contemplate our place in deep time.

Kenneth Lacovara: Hunting for dinosaurs showed me our place in the universe

Hunting for dinosaurs showed me our place in the universe

Discovering Dreadnoughtus, a dinosaur weighing more than seven T. rex, reveals the improbable journey from tiny mammals to us.

The geological record, filled with 'small miracles', underscores Earth's deep time, offering perspective on our fleeting presence.

Our current path could lead to the sixth extinction. Unlike dinosaurs, we see it coming and have the power to change course.