You probably already knew that fevers can cause some people to develop seizures. According to the National Institutes of Health, these so-called ‘febrile seizures’ can happen at temperatures of 102.2 degrees F and above and are most-often seen in children. The good news is that this type of seizure is usually short and does not often cause any long-term damage to the brain. In a new study published in Physiological Reports, […]
Deer mice are known for being quite promiscuous. In fact, it is not uncommon to find a litter of deer mice with multiple fathers. Dr. Hopi Hoekstra and colleagues at Harvard University’s Department of Organismic and Evolutionary Biology discovered that the tail of deer mice sperm have longer midsections than found in monogamous mice. What this means is that their sperm can swim better and faster, thereby reaching an egg sooner than sperm from other prospective fathers. […]
A multi-national team of scientists sought to determine the age of Greenland sharks (Somniosus microcephalus). These animals grow rather slowly (about 1cm per year) and are the largest fish in the arctic (>500 cm long), but their longevity was not yet known. The team used radiocarbon dating of crystalline proteins found within the nuclei of the eye lens. Because these proteins are formed prenatally, they offer a rather accurate way to […]
In true MacGyver fashion, an employee at the Rainbow Springs Nature Park in New Zealand repaired a damaged kiwi bird egg with masking tape thus protecting the chick from dehydration. The newly hatched bird was appropriately named Fissure.
…in alligators at least. Researchers from the University of Manchester, University of North Texas – Denton, and the Rockefeller Wildlife Refuge – Grand Chenier, Louisiana teamed up to explore the effects of exposure to low oxygen on embryonic American alligators (Alligator mississippiensis). Alligator eggs are often laid in nests where oxygen concentrations can reportedly vary between 11-20% (21% is normal atmospheric levels). This is really important as issues related to embryonic development could continue to affect animals throughout their adult lives […]
Check out this video from Reuters (via YouTube). It summarizes an exciting study from researchers at Imperial College London who were able to stop the progression of Alzheimer’s disease in mice by administering a modified virus to the animals. The virus worked by preventing the formation of the characteristic amyloid plaques that are responsible for causing damage to neurons in the brain. Importantly, the virus did not result in loss […]
A new study was designed to test whether bees can experience some kind of primordial “emotions”. In the study bees were trained to associate a tunnel marked with a blue flower with a sugar water treat at its end. In contrast, a green flower meant no reward at the end of the tunnel. However, when bees were exposed to flowers with both hues, they either chose not to enter the tunnel or […]