Unlocking Bryson’s Brain is the latest release from CBC Podcasts. Bryson seems like a perfectly healthy baby. But soon doctors confirm his parents’ worst fears: something is wrong with Bryson’s brain. Despite dozens of tests over nearly a decade, doctors come up empty in their efforts to find a diagnosis.Then one day, everything changes. Scientists working at the cutting edge of genetics believe they know what's causing Bryson's disease — and think it could be reversed. Here’s the first bonus episode of the new CBC podcast, Unlocking Bryson’s Brain. More episodes are available at hyperurl.co/unlocking

Why speaking ‘moistly’ could be partly to blame for the rapid spread of COVID-19. Apollo 13 was a near-disaster that became a triumph — now you can experience it in real time. The birds on their backs are a distant early warning system for endangered rhinos. A desert toad chooses to mate with another species when times get tough. Play ball! Researchers find ancient ballcourt in Mexico’s highlands.

How we test for the COVID-19 virus — and how can we do it faster? COVID-19 could be treated with blood plasma from those who’ve recovered. We need vaccines for the coronavirus — here’s how we’ll make them. The coronavirus could threaten endangered mountain gorillas. Electric assist running boots may be the future of recreational jogging.

Scientists are mobilizing from the ground up and the top down in our war against COVID-19. Can we control the pandemic and move from 'flattening the curve' to 'riding the wave'. Salads in space: NASA has learned to grow lettuce on the space station. How Pablo Escobar’s escaped hippos are helping to restore an ancient ecosystem

How aging increases vulnerability to COVID-19 and how pollution can make it worse. COVID-19 has led to huge emissions reductions — can we learn from this? ‘Wonderchicken’ walked among the dinosaurs just before the mass extinction. Japanese space scientists shoot an asteroid to learn about its past.

COVID-19: Why reacting early and aggressively is the key to avoiding crisis; How the Greenland Ice Sheet is melting from the bottom up; Squat, don’t sit: The way we are sedentary could make a big difference in our health; SmartICE: Supporting Inuit knowledge of the landscape with technology.

‘It’s like you have a hand again’ — A major breakthrough in robotic limb technology; Is damming the entire North Sea a realistic way to defend against sea level rise?; Your dog’s cold wet nose may help it ‘see’ in infrared; Ancient ocean crust suggests Earth was once almost entirely covered in water; The tale of the two female pilots who could have been the first women in space; Would leaving compostables in with the garbage help break the garbage down?

We may have passed the tipping point in the COVID-19 coronavirus outbreak; Whales may migrate to warm water for a full body exfoliation; Long-lived trees may have found the cellular secret to theoretical immortality; We've been cloud seeding for decades, but now we finally know if it works; Walrus knocking, seals trilling — these are the sounds of the Arctic; Why do some animals lay eggs, and others give live birth?

The Dose is a new weekly podcast that answers everyday health questions like: What vaccines do adults need? Does your Fitbit actually make you fitter? Or, should I bother taking vitamins? Dr. Brian Goldman and the team behind White Coat Black Art bring you the best science from top experts in about the same amount of time as an appointment with your GP. Subscribe to The Dose at smarturl.it/thedosecbc

Tracking the spread of viruses in live animal markets by building one in a lab; The largest turtle that ever lived had fighting horns on its shell; NASA's building a robot to explore Jupiter's moon Europa - from underneath it's icy shell; Vivid and fabulous jewel beetles actually use their colours for camouflage; Why the way we talk about climate change makes some people stop listening; How can planes travel against the rotation of the Earth?