A new study suggests animal life may be older than previously thought, tracing back to Earth's extreme glaciations. Discovery Science revisits the Chicxulub meteorite impact that caused dinosaur extinction.
Ancient animal fossils found
The first known animal fossils are about 574 million years old, but scientists believe animal life may have existed much earlier than that.
Study suggests earlier animal origins
A new study suggests that animal life may have originated during a period of extreme global glaciation, which challenges current theories about when animals first appeared on Earth.
Glaciation period reshapes understanding
This research could change how scientists view the emergence of the animal kingdom and raise new questions about the conditions necessary for complex life to develop.
Dinosaur extinction event revisited
Around 65 million years ago, a massive meteorite impact near the Yucatán peninsula in Mexico created the Chicxulub crater, contributing to the extinction of the dinosaurs.
Discovery Science explores the impact
Discovery Science has revisited this catastrophic event in a video, examining the scale and effects of the meteorite impact.
