Mule deer navigate in spring and fall mostly by using their knowledge of past migration routes and seasonal ranges.
There are only two northern white rhinos left worldwide, both of them female. Saving this representative of megafauna from extinction seems impossible under these circumstances, yet an international consortium of scientists and conservationists just completed a procedure that could enable assisted reproduction techniques to do just that. On August 22, 2019, a team of veterinarians successfully harvested eggs from the two females who live in Ol Pejeta Conservancy in Kenya.
Drosophila melanogaster develops stable long-term memory for its body size and reach through motion parallax while walking.
Trade-offs in the sizes of visual and olfactory organs are a common feature of animal evolution, but the underlying genetic and developmental mechanisms have not been clear. A study publishing Aug. 22, 2019 in the journal Developmental Cell reveals that a single DNA variant that affects the timing of sensory organ development in fruit flies could explain the size trade-off between eyes and antennae, potentially providing a quick route to behavioral changes and adaptation.
Researchers have unlocked mysteries surrounding how a pregnant mother's cells and her fetus' cells communicate throughout pregnancy. With this new information, The University of Texas Medical Branch at Galveston team and their colleagues in South Korea can develop new non-invasive methods of monitoring and improving the health of the fetus using this mode of communication.
In ongoing investigations, clinical researchers from Brigham and Women's Hospital are exploring whether pomegranate juice intake during pregnancy can have a protective effect.
A serious case of the flu can cause lasting damage to the lungs. In a study in mice, researchers from the University of Pennsylvania and colleagues found that transplanting cells from the lungs of healthy animals enhanced healing in others that had had a severe respiratory infection.
Iron deficiency in pregnancy is a common problem that often goes unrecognized and untreated due to a lack of knowledge of its implications and competing clinical priorities. To enhance screening and management of iron deficiency in pregnancy, a research team at Toronto's St. Michael's Hospital developed a quality improvement toolkit, called IRON MOM. The implementation of IRON MOM resulted in increased rates of ferritin testing and decreased rates of anemia at St. Michael's obstetric clinics.
It normally takes about 21 days for chicken embryos to develop into chicks. By observing chicken hindlimb formation, a CNRS / Université de Paris research team has just discovered that the mechanism at the origin of embryonic development consists of a sequence of reflexive contractions. The researchers were able to artificially recreate the same process and accelerate it by as much as a factor of 20.
Every day, people are exposed to myriad chemicals both natural and synthetic, some of which may affect human physical development. Researchers from Boyce Thompson Institute have discovered nacq#1, a natural compound produced by a soil roundworm that dramatically influences time to sexual maturity and lifespan in tiny amounts. Because nacq#1 and its related nuclear receptors are so similar between the worm and humans, miniscule amounts of small molecules could similarly impact human development and lifespan.