Sharing the menu: sharks take shifts

Large coastal sharks engage in ‘shift work’ to share their resources, according to a new study from Murdoch University’s Harry Butler Institute. The study, published today in Proceedings of the Royal Society B, tracked six large coastal shark species living in the balmy waters of the Gulf of Mexico, and found that, in areas they … Continue reading Sharing the menu: sharks take shifts

Yes, the megalodon was really big

The megalodon (Otodus megalodon) has a long-standing reputation as one of the largest sharks to have roamed the oceans. Now, US researchers have confirmed its sheer enormity, suggesting it grew up to 15 metres in length. That’s on a par with the extant current record holder, the whale shark (Rhincodon typus). “For animals and especially … Continue reading Yes, the megalodon was really big

New thoughts on how sharks evolved

This 410-million-year-old fossil with a bony skull uncovered in Mongolia may force a rethink of how sharks evolved. Minjinia turgenensis, a new species, is an ancient cousin of both sharks and animals with bony skeletons, the researchers say – and that suggests the lighter skeletons of sharks may have evolved from bony ancestors, rather than … Continue reading New thoughts on how sharks evolved

A difficult time to be a reef shark

Reef sharks are having a challenging time as they confront threats from fishing, denser human populations and climate change. An extensive survey has found that adults have effectively become extinct in nearly a fifth of the world’s tropical oceans, while a separate study reveals that, even when protected, shallow shark nurseries are affected by warming … Continue reading A difficult time to be a reef shark

Changes to shark family tree

Four new species of tropical walking sharks are causing a stir in waters off northern Australia and New Guinea. Yes, you read that right, walking sharks. This isn’t that episode of The Simpsons where the dolphins come out of the water, walking on their tails. Instead, these creatures use their fins to walk in very … Continue reading Changes to shark family tree

Films that will change how you see the world

Science and storytelling meld into an emotional rollercoaster at SCINEMA, the southern hemisphere’s largest science film festival. From near impossible medical achievements to the complicated love lives of one-in-a-million snails, audiences are taken through the highs and lows of science and what it means to be human. Here’s eight films being shown at the national … Continue reading Films that will change how you see the world