A group of world-renowned scientists are on a quest to uncover the secrets of the most significant day in our planet's history: the day that killed the dinosaurs. 66 million years ago an asteroid the size of London hit the planet in the modern-day Gulf of Mexico. Now, as co-leaders of an expedition to drill deep into the Chicxulub asteroid impact crater, Geologists Sean Gulick and Jo Morgan have set out to answer how this resulted in the extinction of dinosaurs.
Venture into the lush confines of the Brazilian Pantanal, host to an assortment of unusual creatures with similarly strange habits. Among these, you'll encounter the piraputanga fish that leaps out of the water to pluck fruit off low-hanging branches and the lowland tapir--the largest land mammal in South America--who can eat up to 100 lbs. of vegetation each day.
The next programme deals with flying insects. It begins in Central Europe, where the Körös River plays host to millions of giant mayflies as they rise from their larval skins to mate. — the climax of their lives. Mayflies and dragonflies were among the first to take to the air about 320 million years ago, and fossils reveal that some were similar in size to a seagull. Damselflies are also looked at in detail.