Mammalian

Males Aren’t Larger Than Females in Most Mammalian SpeciesA new study corrects a biased assumption promoted by Charles Darwin 150 years ago and repeated ever sinceBy Rachel Nuwer In The Descent of Man, Charles Darwin posits that in most species of mammals, males are larger than females. Although Darwin did not cite evidence to back up this claim, his view on sexual size dimorphism was readily accepted as fact, and it still dominates today.But Darwin, in this case, seems to have been wrong. An analysis of 429 mammalian…

Titanosaurs—The Biggest Land Animals in Earth’s History—Thrived by Combining Reptilian and Mammalian TraitsThe secret to titanosaurs’ remarkable biological success may be how they merged the best of both reptilian and mammalian characteristics to form a unique way of lifeBy Kristi Curry Rogers & The Conversation USThe Titanosaur, the largest dinosaur ever displayed at the American Museum of Natural History, is unveiled at a news conference January 14, 2016 in New York. Credit: Don Emmert/AFP via Getty ImagesThe…

New research at Purdue University has revealed the presence of mercury in mongoose brains, suggesting a wider environmental impact and potential risks to human health. This groundbreaking discovery enhances our understanding of mercury’s neurotoxicity in terrestrial animals. Credit: SciTechDaily.comScientists uncovered mercury in mongoose brains, indicating a broader environmental threat and raising concerns about human exposure to mercury.Exposure to mercury (Hg) is extremely neurotoxic in most chemical forms. Even…

Researchers have created a groundbreaking cellular map of a mammalian brain, detailing over 5,300 cell types in an adult mouse brain. This atlas, derived from extensive research, is a significant step in understanding brain function and evolution and holds promise for precision treatments of brain disorders. Credit: SciTechDaily.comHigh-resolution atlas charts neural neighborhoods for more than 5,300 cell types.Six years and 32 million cells later, scientists have created the first full cellular map of a mammalian brain.…

Researchers have created the first comprehensive cell atlas of a mammalian brain, mapping over 32 million cells in the mouse brain. This atlas, part of the NIH BRAIN Initiative, offers unprecedented insights into brain cell types and connections, advancing our understanding of the human brain and aiding in developing new treatments for brain disorders. Credit: SciTechDaily.com A groundbreaking cell atlas mapping the entire mouse brain, detailing over 32 million cells, paves the way for a deeper understanding of the human…

The Zoonomia Project has documented the genetic diversity in 240 mammalian species, covering over 80% of mammalian families. By sequencing and aligning the genomes, the team has identified conserved genomic regions across species, highlighting areas that may be biologically significant, but do not code for proteins. Their research suggests that at least 10% of the human genome is functional, a tenfold increase on the portion that codes for proteins. The data has illuminated genetic variants potentially connected to…

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Scientists at Nanyang Technological University in Singapore (NTU Singapore) have discovered a way to make biocement from trash, making it a greener and more sustainable alternative to ordinary cement. Biocement is a type of renewable cement that binds soil into a solid block by using bacteria to induce a hardening reaction. Biocement has now been made by NTU scientists using two common waste materials — industrial carbide sludge and urea (from mammalian urine). They invented a method for creating a hard solid, or…