Evolusjon

A distinct population of leopards in South Africa’s Cape Floristic Region has developed much smaller bodies than other African leopards, researchers report. Genetic analysis shows the animals have been isolated for roughly 20,000 years and adapted to local conditions.

20. juni 2026 Rapportert av AI

New research indicates that the earliest primates originated in cold and dry regions of North America rather than tropical forests. The findings challenge long-held assumptions about primate evolution.

A new study from the University of Michigan suggests that beneficial mutations are more common than previously thought but often fail to spread because environments change too quickly. The research proposes a revised view of molecular evolution.

28. mai 2026 Rapportert av AI

Tiny wrens on remote Scottish islands are growing much larger than their mainland relatives and developing distinct traits that may lead to new species.

New research reveals that cacti are among the fastest-evolving plant groups on Earth, driven by rapid changes in flower shape rather than size or pollinators. The findings from the University of Reading challenge long-held ideas about speciation dating back to Darwin. Scientists analyzed data from more than 750 species to reach their conclusions.

12. mai 2026 Rapportert av AI

Researchers have described a previously unknown sauropod dinosaur from fossils found in Argentina's Chubut province. The creature, called Bicharracosaurus dionidei, reached about 20 meters in length and lived around 155 million years ago.