A study of fossil teeth from a 56-million-year-old extinct predator reveals how animals adapted to extreme climate change. The findings suggest that limited food played a bigger role in the dietary shift than just hotter temperatures.
A 63-bone fossil discovery of Archaehierax sylvestris, a 25-million-year-old eagle-like raptor, has been made in South Australia. The species is one of the oldest eagle fossils known from this period and provides insight into raptor evolution in Australia.
A study by Markus Harting found that glass spherules from Mexico to Haiti match the chemical composition of rocks melted at Chicxulub. The reworked spherules are misplaced in sediments close to the K-T boundary, casting doubt on previous timelines.