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Kotevski et al. (2025) describe new fossil material of theropods from the Lower Cretaceous Strzelecki Group and Eumeralla Formation , including the first carcharodontosaurian fossils from Australia, bones of large-bodied megaraptorids and a tibia of a member of Unenlagiinae. [35]
Reijenga & Close (2025) study the fossil record of Phanerozoic marine animals, and argue that purported evidence of a relationship between the duration of studied clades and their rates of origination and extinction can be explained by incomplete fossil sampling. [46] Maletz et al. (2025) revise Paleozoic fossils with similarities to feathers ...
Doughty et al. (2025) use a mechanistic model to study the relationship between seed size of flowering plants, their light environment and the size of animals in their environment, and predict a rapid increase of seed size during the Paleocene that eventually plateaued or declined, likely as a result of the appearance of large herbivores that opened the understory, reducing the competitive ...
A 68-million-year-old skull fossil found in Antarctica has revealed the oldest known modern bird, ... February 5, 2025 at 8:56 AM. Sign up for CNN’s Wonder Theory science newsletter.
Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that ...
Evidence from the study of brain endocasts of extant and extinct mammals, indicative of cortical expansion in the areas of the brain involved in producing cognitive functions that began early on during the primate evolution, is presented by Melchionna et al. (2025), who argue that selection for complex cognition likely drove the evolution of primate brains.
Fossils from before the mass extinction have only been found around the Equator, but after the event fossils can be found all over the world. [13] Suggested explanations for this include: Archosaurs made more rapid progress towards erect limbs than synapsids, and this gave them greater stamina by avoiding Carrier's constraint.
A new analysis of three-toed fossil footprints that date back more than 210 million years reveals that they were created by bipedal reptiles with feet like a bird’s.