How have some plants managed to live 5000 years? They are masters of photosynthesis and have survived on trips into space. In fact, there are now "plantimals". Perhaps it is time we learned more from plants about our world and how to live in it as partners.
Plants are able to communicate with each other in ways we are only now beginning to understand. Some plants can differentiate between roots of their "family" and roots of other kinds of plants when they touch underground. See how plants "talk" to each other and find out what they talk about!
2017 • 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.
Attenborough describes the course the Amazon, starting high up in the Andes of Peru, whose streams flow into the great river. Young rivers are by nature vigorous and dangerous: they flow fast and form rapids, thick with mud and sediment.
Are you genetically destined to despise brussels sprouts? We’re all human, but why are we all so different? With the help of a line-up of dogs and many sets of twins, Prof Alice Roberts explores what makes each of us totally unique.