Scientists from the Canadian Museum of Nature have announced the discovery and description of an extinct rhinoceros from the Canadian High Arctic. The nearly complete fossil skeleton of the new species was recovered from the fossil-rich lake deposits in Haughton Crater on Devon Island, Nunavut and is the most northerly rhino species known. Rhinoceroses have an evolutionary history that spanned over 40 million years, encompassing all continents except South America and Antarctica. The “Arctic rhino” lived about 23 million years ago, during the Early Miocene and is most closely related to other rhino species that thrived in Europe millions of years earlier. The paper also describes that the new Arctic species migrated to North America across a land bridge that may have been a passage for terrestrial-mammal dispersal millions of years later than previous evidence suggests.

In the quest for more targeted lung cancer treatments, a researcher at the University of Missouri thinks the solution may lie in tiny bubble-shaped packages that cells use to talk to each other.

Researchers have uncovered genetic elements that drive the rapid development of marsupials’ facial features, presenting their findings in eLife.

Pregnant women with vitamin D deficiency may develop osteomalacia – a form of bone softening. A new Swedish study shows that this condition increases the risk of needing vacuum-assisted delivery or emergency caesarean section fivefold. Muscle weakness due to vitamin D and calcium deficiency may be a possible explanation, in addition to the pelvic changes historically associated with osteomalacia.

The Icahn School of Medicine at Mount Sinai is pleased to announce it has received a three-year, $4.5 million grant from BD²: Breakthrough Discoveries for thriving with Bipolar Disorder to investigate the neural mechanisms underlying bipolar disorder and pioneer novel neuromodulation-based treatment strategies.