At the end of the Jurassic period, corgi-size pterosaurs were searching for food along an ancient shoreline when they felt the cool pings of a light rain, new fossil track marks reveal. Researchers found the fossilized track marks of these winged reptiles interspersed with raindrop impressions near Casper, Wyoming, whichContinue Reading
Pioneering analysis of 200 million-year-old teeth belonging to the earliest mammals suggests they functioned like their cold-blooded counterparts – reptiles, leading less active but much longer lives. The research, led by the University of Bristol, UK and University of Helsinki, Finland, published today in Nature Communications, is the first timeContinue Reading
Nicole Ward, who studies inflammatory skin diseases at Case Western Reserve University, was all set to ship the last six mice in a cohort to a collaborator at the University of Michigan for analysis next week. But then she got word that the University of Michigan would no longer acceptContinue Reading
Earlier this week (February 18), the US Department of Agriculture replaced on its website the animal welfare records that the agency had removed in early 2017 and added records that had been generated since, as ordered by Congress, The Washington Post reports. These documents, unredacted and searchable, include thousands ofContinue Reading
The US Food and Drug Administration will now permit certain animals used in experiments to retire and be adopted rather than face euthanasia, according to internal documents reviewed by The Hill. Although the policy changed in November, there have not been any public statements from the agency. According to TheContinue Reading
