Beer shortages could be a consequence of climate change thanks to barley crop failures; A dung beetle's genital worms will help care for its offspring; A meat eater chooses a side of seagrass - this shark's an omnivore; Rain, spiders and bears are all part of discovering Canada's backcountry biology; Why you don't go momentarily blind when you blink; Why don't we sneeze when we're asleep?