Topic: mammals

Robyn Williams and Belinda Smith explore biological cooperation and symbiosis, how bees protect their colonies against disease, and the pressures that climate change places on African lions. The programme also examines evolutionary competition between reptiles and mammals and the scientific accuracy of dinosaur displays. This edition brings together five science reports connecting interactions among organisms, environmental change and the communication of biological research.

Tail development provides a case study for connecting genetic change to the evolution of anatomy. This lecture introduces relevant ideas from evolutionary developmental biology and RNA splicing, then considers variation in tail presence and length across mammals. It also examines what different experimental approaches can establish about DNA, form and function.