EnvironmentToxic algae blighting South Australia could pose a global threat Researchers warn that the alga Karenia cristata, which has killed around a million animals in Australian waters in one of the biggest algal blooms ever seen, could harm marine life elsewhere 51¶¯Âþ
HealthWalking 3000 steps a day seems to slow Alzheimer's-related decline Alzheimer's-related cognitive decline could be slowed by taking as few as 3000 steps a day, possibly due to the effects of regular exercise on brain health 51¶¯Âþ