While species losses mount worldwide, conservationists in Brazil have made great strides towards saving the golden lion tamarin and its forest habitat from destruction. Gene Russo reports.
Gretchen Daily knows the value of ecosystems – but can ascribing financial worth to them help to maintain biodiversity? Emma Marris meets an ecosystem-services evangelist.
Genetic sequences in a cell's mitochondria can be used to accurately determine species. Could this be because they are responsible for creating what they identify? Nick Lane investigates.
Geneticists looked to the human genome to understand human evolution. But it's hard to interpret without considering the inheritance of culture, finds Erika Check Hayden.
People's mindsets are neither fixed by evolution nor infinitely malleable by culture. Dan Jones looks for the similarities that underlie the diversity of human nature.
The idea that natural selection acts on groups, as well as individuals, is a source of unending debate. Marek Kohn reports on what the two sides disagree about — and why it matters to them.
Biologists see living systems like mechanical clocks: optimally tuned and prone to failure if one component goes wrong. But, as Tanguy Chouard reveals, this is not what happens in the real world.