LifeWeb of blood vessels helps protect whales’ brains while swimming When a whale pumps its tail up and down to swim, a wave of increased blood pressure moves from the tail to the head – but a network of vessels redirects the animal’s blood to protect the brain 51¶¯Âþ
EnvironmentGreenhouse gas emissions are warming up nights faster than days Since 1951, the gap between night and day temperatures has closed by 0.41°C, and simulations show that the bulk of this warming is due to greenhouse gas emissions 51¶¯Âþ