Alien Invaders

Tom Heap introduces Rare Earth, a programme exploring major stories about our environment. 

Steve Backshall lives in a new build house which is very energy efficient and almost totally off-grid. However, achieving this has been extremely time consuming, expensive and pretty stressful. For this episode of Costing the Earth, Steve explores why -- when the cost of heating ...  Show more

Australia's swamp tortoise is one of the most endangered species in the world. This species lives in wetlands that are under threat due to rising temperatures and a reduction in rainfall.In an effort to save the tortoise, researchers are trialling a controversial strategy called ...  Show more

Why do wasps exist? While many see them as unfriendly bees who sting out of spite, their aggression could be interpreted as a fierce form of family protection. They are hugely understudied and even more underappreciated, with hundreds of thousands of different species carrying ou ...  Show more

Australia is famous for its unique wildlife and landscapes. But Australia also has the highest mammal extinction rate in the world, and there are big declines in frogs, reptiles, and birds caused by introduced predators and land clearing. Some species are hanging on in small numb ...  Show more

"What’s the point of wasps?" asks listener Andrew, who is fed up with being pestered. For this series, with lockdown learning in mind, Drs Rutherford and Fry are investigating scientific mysteries for students of all ages. Do wasps do anything to justify their presence as a picni ...  Show more