Just how big was the biggest dinosaur ever to walk the face of the earth?
Professor Nick Eyles examines layers of earth and reveals the geologic journey that has shaped the planet.
A selection of stories featuring encounters and sightings of the unexplained.
Follow the embryonic and fetal journey of one of nature's most fascinating reproductive accidents.
Lions and Bengal cats.
Stunning visual effects and CGI cats in the womb.
A unique view into the extraordinary embryonic journey of a shark and a parasitic wasp.
Known Universe Team Images
Dinosaurs managed to survive injuries, infections and diseases that would kill most predators today.
See photos from the African rift where earth’s crust is ripping apart as rocks from deep within push up.
Explore Asia’s collision zone where Indonesia’s fiery volcanoes are at one end and the massive Himalayas at the other.
From kayaking accidents to mighty powerful waves they survived underwater.