Tiger shark eating a turtle, Tiger sharks are known as impressive predators that hunt and consume almost anything from birds to sea turtles. But when the opportunity presents itself, these sharks easily convert into the role of marine scavengers. This behavior was reported¹ in Springer's journal Behavioral Ecology and Sociobiology by a team of American, Australian and British researchers led by Neil Hammerschlag of the University of Miami Rosenstiel School of Marine and Atmospheric Science in the US. They re-evaluated satellite tracking data collected from tiger sharks and green turtles off the Great Barrier Reef's Raine Island, which is home to the world's largest concentration of nesting green turtles.

3-D reconstruction of a GluMI cell at the ultrastructural level showing its input (magenta puncta) and output (yellow puncta) obtained using serial block face scanning electron microscopy. In the retina of mice, a new type of neuron that falls outside century-old classifications has been discovered.

Associate Professor Jason Able with durum wheat in plant breeding trials. University of Adelaide researchers are rethinking plant breeding strategies to improve the development of new high-yielding, stress-tolerant cereal varieties.

After fully sequencing the latent HIV "provirus" genomes from 19 people being treated for HIV, scientists at Johns Hopkins Medicine report that even in patients who start treatment very early, the only widely available method to measure the reservoir of dormant HIV in patients is mostly counting defective viruses that won't cause harm, rather than those that can spring back into action and keep infections going.