How much of a lake or river is actually fish pee? What's corn silk actually for? What happens when an astronaut gets gassy in a space suit? And much more..

Fish out of water get a brain boost; A large star that pulled a disappearing act may be a new kind of ‘blinking giant’; Echidnas have a unique 4-headed penis but only use half at a time; They're not speedy, but these seafloor sponges are on the move; Sick legacy — how DDT exposure from the past can affect many generations to come.

Visiting Venus — NASA announces 2 new missions to Earth's evil twin; Your brain replays new skills at super-speed when you take breaks during learning; Wrens synchronize their brains in order to sing spectacular duets; New study shows puppies are born wired to understand and communicate with humans; Meet the Canadian scientist who paved the way for for groundbreaking mRNA COVID vaccines; Do great apes have the same blood groups as humans?

Sharks were almost wiped out in a mystery extinction 19 million years ago; Caffeine fail - New study shows it can keep you awake, but can’t keep you functional; How an elephant’s trunk acts as a “muscular multitool”; Normally herbivorous sea urchins turn the tables on a predatory sun star; How Indigenous science could help us with our sustainability and diversity crisis.

Salmon CSI - A virus in BC's wild salmon came from salmon farms, research suggests; By swabbing subways researchers discover the municipal microbiome of cities worldwide; Robotic arms get a performance boost by getting touchy-feely; Wolves can reduce collisions between cars and deer, saving lives and money; ‘Mom Genes’ explores the radical biological transformations of motherhood.

The world could be facing a sand crisis. A new study looks for solutions; World's first nuclear detonation forged the first human-made quasicrystal; Voyager 1 picks up the the ‘hum’ of of interstellar space; Animals can breathe through their butts and oxygen up the wazoo may work for humans too; Dethroning our old toilets. A new book looks at the environmental revolution in toilet tech; What evidence for dark matter has been found in the Milky Way?

California condors escaped extinction — and a genetic bottleneck; Astronomers get rare and surprising before and after shots of a star going supernova; For soccer players, the less brain they use, the better for penalty kicks; Beaver-hunting wolves have perfected a sit-and-wait strategy; An ocean of noise is having major impacts on the marine environment; Why are birds like parrots able to mimic sounds?

Wild donkeys and horses dig wells in the desert, and create a refuge for plants and animals; Genetically modified grass can suck toxic explosives out of the ground; Animals don't seem to much care if they mate with relatives; Making the most of fish waste: how scientists transformed it into biodegradable plastic; Digging into 75,000 year old mastodon dung to learn about ancient Nova Scotia; Why do some animals have slit shaped pupils?

Scientists shocked to discover how much lightning cleans the atmosphere; Digging up 142-year-old seeds in the latest instalment in the world’s oldest experiment; Researchers solve the mystery of loggerhead turtle's lost years; A pioneering forest researcher's memoir describes 'Finding the Mother Tree'; Why do we cry when we are sad?

How NASA built and flew the first helicopter to fly on another planet; The horn of the unicorn of the sea reveals a dirty secret about arctic pollution; Billions and billions of Tyrannosaurs walked the Earth; How long before we all understand that SARS-CoV-2 COVID is airborne?; Understanding geoengineering - why we need to investigate last resort to tackle climate change.