The puzzle of Palaeospondylus – Over a hundred years ago, archaeologists discovered fossils of the aquatic animal Palaeospondylus. But since then researchers have been unable to place where this animal sits on the tree of life. Now, new analysis of Palaeospondylus’s anatomy might help to solve this mystery.

08:18 Research Highlights

A strong, silk-based version of mother of pearl, and the parrots that use their heads when climbing.

Research Highlight: Silk imitates mother of pearl for a tough, eco-friendly material

Research Highlight: A ‘forbidden’ body type? These parrots flout the rules

10:51 How lasers revealed an ancient Amazonian civilization

Archaeologists have used LiDAR to uncover evidence of an ancient civilization buried in the Bolivian Amazon. The team’s work suggests that this area was not as sparsely populated in pre-Hispanic times as previously thought.

Research article: Prümers et al.

News and Views: Large-scale early urban settlements in Amazonia

Nature Video: Lost beneath the leaves: Lasers reveal an ancient Amazonian civilisation

16:21 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, the debate surrounding the first transplant of pig kidneys into humans, and the plants grown in lunar soil.

Nature News: First pig kidneys transplanted into people: what scientists think