Whiffen the sea otter passed away on May 10 during an MRI scan at the Vancouver Aquarium Marine Mammal Rescue Centre. Three months earlier he was found stranded on a beach, his hind flippers injured. According to the aquarium’s veterinarian, Whiffen was likely infected with Toxoplasma gondii, a parasite from cat feces that finds its…
Remember playing “The Oregon Trail” computer game in middle school? As a pioneer leading your family westward in a covered wagon, you hunted virtual deer, rabbits and bison—but not too many. You had to leave enough game animals alive to sustain your party until you reached Oregon. And along the way, you were subject to chance events…
Reader, be proud. You’re a perceptual expert. As you read, your eyes alternately focus and move along each line of text in a seamless sequence honed over years of practice. Reading, recognizing faces and distinguishing colors or musical tones are all forms of perceptual expertise. To appreciate the visual skill involved in reading, turn a…
On African savannas, poachers have forced black rhinos nearly to extinction. Closer to home, poaching, poisoning and habitat loss threaten California condors. Yet nearly 60 percent of all endangered species in California are plants. With more than 6,000 native plant species, the Golden State is so rich that Conservation International calls it a biodiversity hotspot….
I could learn a lot from my spit if I wanted to. Thanks to advances in DNA sequencing, I could send my spit off for personal genomic testing and find out my predicted risks for hundreds of diseases and conditions. But I haven’t. After years of studying the genetics of plants, I’m fascinated by the…
