Flowerhorn cichlids are aquarium fish prized for their bright-gold colour and prominent head humps. Photograph: Lillian Suwanrumpha/AFP/Getty Images A human-bred aquarium fish prized for its bright gold colour and distinctive head hump has escaped into a volcanic crater lake in the Philippines, where scientists fear it is threatening native wildlife and spreading into local aquaculture.Flowerhorn…

The Grand Canyon reveals a significant geological gap, the Great Unconformity, representing 1.3 billion years of missing Earth history. Image Credits: Wikimedia Commons Grand Canyon’s fame comes from the opportunity to observe geological layers of history seen there, similar to pages in an old book. It might even be the most famous of such geological…

For decades, dinosaurs like Velociraptor have dominated our imagination as fast-moving predators that chased prey across dusty landscapes. But deep in the fossil-rich rocks of southern Patagonia, scientists have uncovered a very different kind of raptor, one that may have spent much of its life standing quietly beside rivers, waiting for fish.The newly identified dinosaur,…