Issues of genetics and DNA are constantly cropping up in the news from food production and health, to legal cases and ethics. We hear about DNA in movies like Jurassic Park and X-men, we learn bits and pieces about it from TV shows like Dexter and and CSI, but what exactly is DNA, and how does it work?
Biologists teach that all living things on Earth are related. Is there any solid evidence to back this claim? Join us as we explore the facts! We start with a close look at the origin of whales from land mammals, and then touch on the origins of several other critters, including our own species.
The Miller-Urey experiment was the first attempt to scientifically explore ideas about the origin of life. Stanley Miller simulated conditions thought be common on the ancient Earth. The purpose was to test the idea that the complex molecules of life (in this case, amino acids) could have arisen on our young planet through simple, natural chemical reactions.
2015 • Nature
At the start of his journey, Attenborough meets some of the people and animals that have made their home along the river in Zambia. He is invited to witness the Kuomboka festival, featuring the Litunga, chief of the Lozi people of western Zambia, and his people. In the festival they migrate from Lealui to Limalunga, before Lealui is flooded by the Zambezi. The spectacular ceremony consists of a fleet of barges, many containing the Lotunga’s possessions, making the journey up the river accompanied by heavy drumming of the royal Maoma drums. Other highlights include David Attenborough joining the Litunga as he opens the court and presides over the inauguration ceremony.
In Tokyo, there are unapproachable "lost islands" where unspoiled environs cradle rich wildlife. Sofugan is a 100-meter-high solitary rock pillar standing in the ocean 650km south of the capital city's center. Remote and difficult to access, it had never been explored in detail. A group of scientists and engineers set out on a two-year survey. This program records their journey, along with the creatures they discover - from unusual species amongst the rugged rocks to mysterious marine life in the surrounding deep sea.
2019 • Nature
This instalment examines the earliest land vegetation and insects. The first plants, being devoid of stems, mainly comprised mosses and liverworts. Using both sexual and asexual methods of reproduction, they proliferated. Descended from segmented sea creatures, millipedes were among the first to take advantage of such a habitat and were quickly followed by other species. Without water to carry eggs, bodily contact between the sexes was now necessary. This was problematical for some hunters, such as spiders and scorpions, who developed courtship rituals to ensure that the female didn't eat the male.