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Xu & Barrett (2025) review the research on the evolutionary history of feathers from the preceding years. [71] Brown et al. (2025) describe a cervical vertebra of a juvenile specimen of Cryodrakon boreas from the Dinosaur Park Formation (Alberta, Canada), preserved with a bite mark interpreted as likely produced by a crocodilian. [72]
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 ...
Hu et al. (2025) report the discovery of new fossil material of Pleistocene mammals from the Dayakou pit (Chongqing, China), including first records of Ailuropoda melanoleuca wulingshanensis, Tapirus sinensis and Leptobos sp. in the Yanjinggou area, and providing new information on changes of mammal faunas from south China during the Early ...
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.
Fossils found in China may add a new branch to the human family tree. ... 2025 at 11:00 AM. Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter.
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 ...
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 study published Wednesday Jan. 16, 2019, found the biggest rise in Siberia, where frozen soil temperatures rose by 0.9 degrees Celsius (1.62 Fahrenheit) between 2007 and 2016. (AP Photo/Arthur Max)