Horizon explores the secrets of what makes a long, healthy and happy life. It turns out that a time you can't remember - the nine months you spend in the womb - could have more lasting effects on you today than your lifestyle or genes. It is one of the most powerful and provocative new ideas in human science, and it was pioneered by a British scientist, Professor David Barker. His theory has inspired a field of study that is revealing how our time in the womb could affect your health, personality, and even the lives of your children.
This instalment is the first of several to concentrate on mammals. The platypus and the echidna are the only mammals that lay eggs (in much the same manner of reptiles), and it is from such animals that others in the group evolved. Since mammals have warm blood and most have dense fur, they can hunt at night when temperatures drop. It is for this reason that they became more successful than their reptile ancestors, who needed to heat themselves externally. Much of the programme is devoted to marsupials (whose young are partially formed at birth) of which fossils have been found in the Americas dating back 60 million years.
Patrick follows the grizzly bears that are taking a risk with the weather by leaving their winter dens early. Hungry wolves are struggling to bring down their elk prey in the unusually shallow snow. And for great grey owls, it is the iciness of the snow that is hampering their hunts. Yellowstone's winter is always one of the most brutal on the planet. But 2016 saw weather records broken, and the wildlife was forced to adapt to survive. Kate Humble gets to grips with the science behind this remarkable season, from understanding the importance of the snowpack's structure as the melt begins to uncovering why Yellowstone's unique geology poses problems for some grazer's teeth.
Chris Packham explores a childhood fantasy - discovering the true animal behind centuries of Hollywood misrepresentation. Using knowledge from groundbreaking paleontological discoveries and utilising the latest CGI wizardry, Chris creates the most authentic T-Rex ever.
2018 • Nature
We flail, we swat, we sweat. We spray, cover up, and hide. But still the tiny, fearsome mosquito penetrates our best defenses. ZAPPED: the buzz about mosquitoes is the story of our ongoing struggle to conquer a little insect that is both delicate and deadly. As the program reveals, this beautiful and versatile blood-sucker has always managed to stay one step ahead of us. As tortured as we are Zapped uncovers, in exquisite detail, how the mosquito goes about its handiwork. It's really only the females that are the problem – they need our blood to incubate their eggs. And, out of more than 3500 species, only 200 or so transmit disease.