Credit: Michael Cameron, NOAA
Ithaca, NY During mating season, male bearded seals make loud calls to attract a mate even their quiet call could still be as ear-rattling as a chainsaw. Bearded seals have to be loud to be heard over the cacophony of their equally loud brethren. And, increasingly, the noise humans make is adding to the underwater din and could have serious consequences. A study conducted by the Cornell Lab of Ornithology s Center for Conservation Bioacoustics (CCB) aims to understand how resilient bearded seals can be to changes in ambient underwater noise. The results are published in
Proceedings of the Royal Society: Biological Science.
Study show for the first time that dim red light activates olfactory gene pathways in the antennae of a model species, the yellow peach moth, increasing the sensitivity of males to female sex pheromones, and ultimately promoting reproductive behavior
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IMAGE: Evan Y. Snyder, M.D., Ph.D., professor and founding director of the Center for Stem Cells and Regenerative Medicine at Sanford Burnham Prebys Medical Discovery Institute. view more
Credit: Sanford Burnham Prebys Medical Discovery Institute
LA JOLLA, CALIF. - Feb. 23, 2021 - The American Institute for Medical and Biological Engineering (AIMBE) has elected to its College of Fellows Evan Y. Snyder, M.D., Ph.D., professor and founding director of the Center for Stem Cells and Regenerative Medicine at Sanford Burnham Prebys Medical Discovery Institute. Snyder was nominated, reviewed, and elected by his peers and members of the College of Fellows for his seminal contributions to regenerative medicine. He will be inducted to AIMBE during a formal ceremony held on March 26, 2021.
Credit: Elisabeth king and Ana Endara, STRI
In Wonderland, Alice drank a potion to shrink herself. In nature, some animal species shrink to escape the attention of human hunters, a process that takes from decades to millennia. To begin to understand the genetics of shrinking, scientists working at the Smithsonian Tropical Research Institute (STRI) in Panama successfully extracted DNA from marine shells. Their new technique will not only shed light on how animals from lizards to lemurs shrink, it will reveal many other stories hidden in shells. Humans are unique as predators, said Alexis Sullivan, doctoral student at Penn State University who did the field research as a short-term fellow at STRI. Most other animals go for smaller, younger, older or injured prey that are easy to catch, but humans often take the largest individual to feed many mouths or to display as a trophy.
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IMAGE: Figure 1: Flower diagram representing the major bacterial groups (phyla) within the milk microbiome of Mam-Mayan Guatemalan mothers view more
Credit: Emmanuel Gonzalez et al.
The cocktail of beneficial bacteria passed from mother to infant through breast milk changes significantly over time and could act like a daily booster shot for infant immunity and metabolism. The research, conducted by scientists from Montreal and Guatemala and published in
Frontiers in Microbiology, has important implications for infant development and health.
Researchers discovered a range of microbiome species never before identified in human milk. Until now, relatively little was known about the role microbiome bacteria play in breast milk. These bacteria are thought to protect the infant gastrointestinal tract and improve aspects of long-term health, such as allergy prevention.